S C Hillman, S Pretlove, A Coomarasamy, D J McMullan, E V Davison, E R Maher, M D Kilby. Ultrasound Obstet Gynecol 2011
Times Cited: 162
Times Cited: 162
Times Cited
Times Co-cited
Similarity
Chromosomal microarray versus karyotyping for prenatal diagnosis.
Ronald J Wapner, Christa Lese Martin, Brynn Levy, Blake C Ballif, Christine M Eng, Julia M Zachary, Melissa Savage, Lawrence D Platt, Daniel Saltzman, William A Grobman,[...]. N Engl J Med 2012
Ronald J Wapner, Christa Lese Martin, Brynn Levy, Blake C Ballif, Christine M Eng, Julia M Zachary, Melissa Savage, Lawrence D Platt, Daniel Saltzman, William A Grobman,[...]. N Engl J Med 2012
59
Consensus statement: chromosomal microarray is a first-tier clinical diagnostic test for individuals with developmental disabilities or congenital anomalies.
David T Miller, Margaret P Adam, Swaroop Aradhya, Leslie G Biesecker, Arthur R Brothman, Nigel P Carter, Deanna M Church, John A Crolla, Evan E Eichler, Charles J Epstein,[...]. Am J Hum Genet 2010
David T Miller, Margaret P Adam, Swaroop Aradhya, Leslie G Biesecker, Arthur R Brothman, Nigel P Carter, Deanna M Church, John A Crolla, Evan E Eichler, Charles J Epstein,[...]. Am J Hum Genet 2010
31
Use of prenatal chromosomal microarray: prospective cohort study and systematic review and meta-analysis.
S C Hillman, D J McMullan, G Hall, F S Togneri, N James, E J Maher, C H Meller, D Williams, R J Wapner, E R Maher,[...]. Ultrasound Obstet Gynecol 2013
S C Hillman, D J McMullan, G Hall, F S Togneri, N James, E J Maher, C H Meller, D Williams, R J Wapner, E R Maher,[...]. Ultrasound Obstet Gynecol 2013
25
Experience with microarray-based comparative genomic hybridization for prenatal diagnosis in over 5000 pregnancies.
Lisa G Shaffer, Mindy P Dabell, Allan J Fisher, Justine Coppinger, Anne M Bandholz, Jay W Ellison, J Britt Ravnan, Beth S Torchia, Blake C Ballif, Jill A Rosenfeld. Prenat Diagn 2012
Lisa G Shaffer, Mindy P Dabell, Allan J Fisher, Justine Coppinger, Anne M Bandholz, Jay W Ellison, J Britt Ravnan, Beth S Torchia, Blake C Ballif, Jill A Rosenfeld. Prenat Diagn 2012
23
Clinical utility of array comparative genomic hybridisation for prenatal diagnosis: a cohort study of 3171 pregnancies.
C-N Lee, S-Y Lin, C-H Lin, J-C Shih, T-H Lin, Y-N Su. BJOG 2012
C-N Lee, S-Y Lin, C-H Lin, J-C Shih, T-H Lin, Y-N Su. BJOG 2012
21
Additional value of prenatal genomic array testing in fetuses with isolated structural ultrasound abnormalities and a normal karyotype: a systematic review of the literature.
M C de Wit, M I Srebniak, L C P Govaerts, D Van Opstal, R J H Galjaard, A T J I Go. Ultrasound Obstet Gynecol 2014
M C de Wit, M I Srebniak, L C P Govaerts, D Van Opstal, R J H Galjaard, A T J I Go. Ultrasound Obstet Gynecol 2014
21
American College of Medical Genetics standards and guidelines for interpretation and reporting of postnatal constitutional copy number variants.
Hutton M Kearney, Erik C Thorland, Kerry K Brown, Fabiola Quintero-Rivera, Sarah T South. Genet Med 2011
Hutton M Kearney, Erik C Thorland, Kerry K Brown, Fabiola Quintero-Rivera, Sarah T South. Genet Med 2011
19
Chromosomal microarray analysis as a first-line test in pregnancies with a priori low risk for the detection of submicroscopic chromosomal abnormalities.
Francesco Fiorentino, Stefania Napoletano, Fiorina Caiazzo, Mariateresa Sessa, Sara Bono, Letizia Spizzichino, Anthony Gordon, Andrea Nuccitelli, Giuseppe Rizzo, Marina Baldi. Eur J Hum Genet 2013
Francesco Fiorentino, Stefania Napoletano, Fiorina Caiazzo, Mariateresa Sessa, Sara Bono, Letizia Spizzichino, Anthony Gordon, Andrea Nuccitelli, Giuseppe Rizzo, Marina Baldi. Eur J Hum Genet 2013
28
ACOG Committee Opinion No. 446: array comparative genomic hybridization in prenatal diagnosis.
. Obstet Gynecol 2009
. Obstet Gynecol 2009
15
Identification of clinically significant, submicroscopic chromosome alterations and UPD in fetuses with ultrasound anomalies using genome-wide 250k SNP array analysis.
B H W Faas, I van der Burgt, A J A Kooper, R Pfundt, J Y Hehir-Kwa, A P T Smits, N de Leeuw. J Med Genet 2010
B H W Faas, I van der Burgt, A J A Kooper, R Pfundt, J Y Hehir-Kwa, A P T Smits, N de Leeuw. J Med Genet 2010
18
Clinical use of array comparative genomic hybridization (aCGH) for prenatal diagnosis in 300 cases.
Ignatia B Van den Veyver, Ankita Patel, Chad A Shaw, Amber N Pursley, Sung-Hae L Kang, Marcia J Simovich, Patricia A Ward, Sandra Darilek, Anthony Johnson, Sarah E Neill,[...]. Prenat Diagn 2009
Ignatia B Van den Veyver, Ankita Patel, Chad A Shaw, Amber N Pursley, Sung-Hae L Kang, Marcia J Simovich, Patricia A Ward, Sandra Darilek, Anthony Johnson, Sarah E Neill,[...]. Prenat Diagn 2009
15
Detection rates of clinically significant genomic alterations by microarray analysis for specific anomalies detected by ultrasound.
Lisa G Shaffer, Jill A Rosenfeld, Mindy P Dabell, Justine Coppinger, Anne M Bandholz, Jay W Ellison, J Britt Ravnan, Beth S Torchia, Blake C Ballif, Allan J Fisher. Prenat Diagn 2012
Lisa G Shaffer, Jill A Rosenfeld, Mindy P Dabell, Justine Coppinger, Anne M Bandholz, Jay W Ellison, J Britt Ravnan, Beth S Torchia, Blake C Ballif, Allan J Fisher. Prenat Diagn 2012
15
Whole-genome microarray analysis in prenatal specimens identifies clinically significant chromosome alterations without increase in results of unclear significance compared to targeted microarray.
Justine Coppinger, Sarah Alliman, Allen N Lamb, Beth S Torchia, Bassem A Bejjani, Lisa G Shaffer. Prenat Diagn 2009
Justine Coppinger, Sarah Alliman, Allen N Lamb, Beth S Torchia, Bassem A Bejjani, Lisa G Shaffer. Prenat Diagn 2009
16
Whole-genome array CGH identifies pathogenic copy number variations in fetuses with major malformations and a normal karyotype.
G D'Amours, Z Kibar, G Mathonnet, R Fetni, F Tihy, V Désilets, S Nizard, J L Michaud, E Lemyre. Clin Genet 2012
G D'Amours, Z Kibar, G Mathonnet, R Fetni, F Tihy, V Désilets, S Nizard, J L Michaud, E Lemyre. Clin Genet 2012
22
Women's experiences receiving abnormal prenatal chromosomal microarray testing results.
Barbara A Bernhardt, Danielle Soucier, Karen Hanson, Melissa S Savage, Laird Jackson, Ronald J Wapner. Genet Med 2013
Barbara A Bernhardt, Danielle Soucier, Karen Hanson, Melissa S Savage, Laird Jackson, Ronald J Wapner. Genet Med 2013
14
High resolution array analysis: diagnosing pregnancies with abnormal ultrasound findings.
M Tyreman, K M Abbott, L R Willatt, R Nash, C Lees, J Whittaker, I Simonic. J Med Genet 2009
M Tyreman, K M Abbott, L R Willatt, R Nash, C Lees, J Whittaker, I Simonic. J Med Genet 2009
15
Prenatal diagnosis using combined quantitative fluorescent polymerase chain reaction and array comparative genomic hybridization analysis as a first-line test: results from over 1000 consecutive cases.
F Scott, K Murphy, L Carey, W Greville, N Mansfield, P Barahona, R Robertson, A McLennan. Ultrasound Obstet Gynecol 2013
F Scott, K Murphy, L Carey, W Greville, N Mansfield, P Barahona, R Robertson, A McLennan. Ultrasound Obstet Gynecol 2013
32
Prenatal chromosomal microarray analysis in a diagnostic laboratory; experience with >1000 cases and review of the literature.
Amy Breman, Amber N Pursley, Patricia Hixson, Weimin Bi, Patricia Ward, Carlos A Bacino, Chad Shaw, James R Lupski, Arthur Beaudet, Ankita Patel,[...]. Prenat Diagn 2012
Amy Breman, Amber N Pursley, Patricia Hixson, Weimin Bi, Patricia Ward, Carlos A Bacino, Chad Shaw, James R Lupski, Arthur Beaudet, Ankita Patel,[...]. Prenat Diagn 2012
17
Committee Opinion No. 581: the use of chromosomal microarray analysis in prenatal diagnosis.
. Obstet Gynecol 2013
. Obstet Gynecol 2013
14
Implementation of genomic arrays in prenatal diagnosis: the Belgian approach to meet the challenges.
Olivier Vanakker, Catheline Vilain, Katrien Janssens, Nathalie Van der Aa, Guillaume Smits, Claude Bandelier, Bettina Blaumeiser, Saskia Bulk, Jean-Hubert Caberg, Anne De Leener,[...]. Eur J Med Genet 2014
Olivier Vanakker, Catheline Vilain, Katrien Janssens, Nathalie Van der Aa, Guillaume Smits, Claude Bandelier, Bettina Blaumeiser, Saskia Bulk, Jean-Hubert Caberg, Anne De Leener,[...]. Eur J Med Genet 2014
22
Introducing array comparative genomic hybridization into routine prenatal diagnosis practice: a prospective study on over 1000 consecutive clinical cases.
Francesco Fiorentino, Fiorina Caiazzo, Stefania Napolitano, Letizia Spizzichino, Sara Bono, Mariateresa Sessa, Andrea Nuccitelli, Anil Biricik, Anthony Gordon, Giuseppe Rizzo,[...]. Prenat Diagn 2011
Francesco Fiorentino, Fiorina Caiazzo, Stefania Napolitano, Letizia Spizzichino, Sara Bono, Mariateresa Sessa, Andrea Nuccitelli, Anil Biricik, Anthony Gordon, Giuseppe Rizzo,[...]. Prenat Diagn 2011
17
Application of SNP array for rapid prenatal diagnosis: implementation, genetic counselling and diagnostic flow.
Malgorzata Srebniak, Marjan Boter, Grétel Oudesluijs, Marieke Joosten, Lutgarde Govaerts, Diane Van Opstal, Robert-Jan H Galjaard. Eur J Hum Genet 2011
Malgorzata Srebniak, Marjan Boter, Grétel Oudesluijs, Marieke Joosten, Lutgarde Govaerts, Diane Van Opstal, Robert-Jan H Galjaard. Eur J Hum Genet 2011
16
A copy number variation morbidity map of developmental delay.
Gregory M Cooper, Bradley P Coe, Santhosh Girirajan, Jill A Rosenfeld, Tiffany H Vu, Carl Baker, Charles Williams, Heather Stalker, Rizwan Hamid, Vickie Hannig,[...]. Nat Genet 2011
Gregory M Cooper, Bradley P Coe, Santhosh Girirajan, Jill A Rosenfeld, Tiffany H Vu, Carl Baker, Charles Williams, Heather Stalker, Rizwan Hamid, Vickie Hannig,[...]. Nat Genet 2011
13
Genomic SNP array as a gold standard for prenatal diagnosis of foetal ultrasound abnormalities.
Malgorzata I Srebniak, Marjan Boter, Gretel O Oudesluijs, Titia Cohen-Overbeek, Lutgarde Cp Govaerts, Karin Em Diderich, Renske Oegema, Maarten Fcm Knapen, Ingrid Mbh van de Laar, Marieke Joosten,[...]. Mol Cytogenet 2012
Malgorzata I Srebniak, Marjan Boter, Gretel O Oudesluijs, Titia Cohen-Overbeek, Lutgarde Cp Govaerts, Karin Em Diderich, Renske Oegema, Maarten Fcm Knapen, Ingrid Mbh van de Laar, Marieke Joosten,[...]. Mol Cytogenet 2012
23
Karyotype versus microarray testing for genetic abnormalities after stillbirth.
Uma M Reddy, Grier P Page, George R Saade, Robert M Silver, Vanessa R Thorsten, Corette B Parker, Halit Pinar, Marian Willinger, Barbara J Stoll, Josefine Heim-Hall,[...]. N Engl J Med 2012
Uma M Reddy, Grier P Page, George R Saade, Robert M Silver, Vanessa R Thorsten, Corette B Parker, Halit Pinar, Marian Willinger, Barbara J Stoll, Josefine Heim-Hall,[...]. N Engl J Med 2012
13
Use of array comparative genomic hybridization for prenatal diagnosis of fetuses with sonographic anomalies and normal metaphase karyotype.
Linda Kleeman, Diana W Bianchi, Lisa G Shaffer, Emily Rorem, Janet Cowan, Sabrina D Craigo, Hocine Tighiouart, Louise E Wilkins-Haug. Prenat Diagn 2009
Linda Kleeman, Diana W Bianchi, Lisa G Shaffer, Emily Rorem, Janet Cowan, Sabrina D Craigo, Hocine Tighiouart, Louise E Wilkins-Haug. Prenat Diagn 2009
15
Prenatal diagnosis: array comparative genomic hybridization in fetuses with abnormal sonographic findings.
Else Marie Vestergaard, Rikke Christensen, Olav B Petersen, Ida Vogel. Acta Obstet Gynecol Scand 2013
Else Marie Vestergaard, Rikke Christensen, Olav B Petersen, Ida Vogel. Acta Obstet Gynecol Scand 2013
50
Clinical utility of chromosomal microarray analysis in invasive prenatal diagnosis.
Lluís Armengol, Julián Nevado, Clara Serra-Juhé, Alberto Plaja, Carmen Mediano, Fe Amalia García-Santiago, Manel García-Aragonés, Olaya Villa, Elena Mansilla, Cristina Preciado,[...]. Hum Genet 2012
Lluís Armengol, Julián Nevado, Clara Serra-Juhé, Alberto Plaja, Carmen Mediano, Fe Amalia García-Santiago, Manel García-Aragonés, Olaya Villa, Elena Mansilla, Cristina Preciado,[...]. Hum Genet 2012
18
Detection of genomic imbalances by array based comparative genomic hybridisation in fetuses with multiple malformations.
C Le Caignec, M Boceno, P Saugier-Veber, S Jacquemont, M Joubert, A David, T Frebourg, J M Rival. J Med Genet 2005
C Le Caignec, M Boceno, P Saugier-Veber, S Jacquemont, M Joubert, A David, T Frebourg, J M Rival. J Med Genet 2005
11
Comparison of microarray-based detection rates for cytogenetic abnormalities in prenatal and neonatal specimens.
Lisa G Shaffer, Justine Coppinger, Sarah Alliman, Beth A Torchia, Aaron Theisen, Blake C Ballif, Bassem A Bejjani. Prenat Diagn 2008
Lisa G Shaffer, Justine Coppinger, Sarah Alliman, Beth A Torchia, Aaron Theisen, Blake C Ballif, Bassem A Bejjani. Prenat Diagn 2008
12
Diagnostic utility of array-based comparative genomic hybridization (aCGH) in a prenatal setting.
Idit Maya, Bella Davidov, Liron Gershovitz, Yael Zalzstein, Ellen Taub, Justine Coppinger, Lisa G Shaffer, Mordechai Shohat. Prenat Diagn 2010
Idit Maya, Bella Davidov, Liron Gershovitz, Yael Zalzstein, Ellen Taub, Justine Coppinger, Lisa G Shaffer, Mordechai Shohat. Prenat Diagn 2010
16
Clinical implementation of whole-genome array CGH as a first-tier test in 5080 pre and postnatal cases.
Sang-Jin Park, Eun Hye Jung, Ran-Suk Ryu, Hyun Woong Kang, Jung-Min Ko, Hyon J Kim, Chong Kun Cheon, Sang-Hyun Hwang, Ho-Young Kang. Mol Cytogenet 2011
Sang-Jin Park, Eun Hye Jung, Ran-Suk Ryu, Hyun Woong Kang, Jung-Min Ko, Hyon J Kim, Chong Kun Cheon, Sang-Hyun Hwang, Ho-Young Kang. Mol Cytogenet 2011
18
Identification of submicroscopic chromosomal aberrations in fetuses with increased nuchal translucency and apparently normal karyotype.
T Y Leung, I Vogel, T K Lau, W Chong, J A Hyett, O B Petersen, K W Choy. Ultrasound Obstet Gynecol 2011
T Y Leung, I Vogel, T K Lau, W Chong, J A Hyett, O B Petersen, K W Choy. Ultrasound Obstet Gynecol 2011
13
Estimates of penetrance for recurrent pathogenic copy-number variations.
Jill A Rosenfeld, Bradley P Coe, Evan E Eichler, Howard Cuckle, Lisa G Shaffer. Genet Med 2013
Jill A Rosenfeld, Bradley P Coe, Evan E Eichler, Howard Cuckle, Lisa G Shaffer. Genet Med 2013
11
Array comparative genomic hybridization and fetal congenital heart defects: a systematic review and meta-analysis.
F A R Jansen, Y J Blumenfeld, A Fisher, J M Cobben, A O Odibo, A Borrell, M C Haak. Ultrasound Obstet Gynecol 2015
F A R Jansen, Y J Blumenfeld, A Fisher, J M Cobben, A O Odibo, A Borrell, M C Haak. Ultrasound Obstet Gynecol 2015
15
The introduction of arrays in prenatal diagnosis: a special challenge.
Annalisa Vetro, Katelijne Bouman, Ros Hastings, Dominic J McMullan, Joris R Vermeesch, Konstantin Miller, Birgit Sikkema-Raddatz, David H Ledbetter, Orsetta Zuffardi, Conny M A van Ravenswaaij-Arts. Hum Mutat 2012
Annalisa Vetro, Katelijne Bouman, Ros Hastings, Dominic J McMullan, Joris R Vermeesch, Konstantin Miller, Birgit Sikkema-Raddatz, David H Ledbetter, Orsetta Zuffardi, Conny M A van Ravenswaaij-Arts. Hum Mutat 2012
19
A prospective study of the clinical utility of prenatal chromosomal microarray analysis in fetuses with ultrasound abnormalities and an exploration of a framework for reporting unclassified variants and risk factors.
Paul Daniel Brady, Barbara Delle Chiaie, Gabrielle Christenhusz, Kris Dierickx, Kris Van Den Bogaert, Bjorn Menten, Sandra Janssens, Paul Defoort, Ellen Roets, Elke Sleurs,[...]. Genet Med 2014
Paul Daniel Brady, Barbara Delle Chiaie, Gabrielle Christenhusz, Kris Dierickx, Kris Van Den Bogaert, Bjorn Menten, Sandra Janssens, Paul Defoort, Ellen Roets, Elke Sleurs,[...]. Genet Med 2014
18
Association of copy number variants with specific ultrasonographically detected fetal anomalies.
Jennifer C Donnelly, Lawrence D Platt, Andrei Rebarber, Julia Zachary, William A Grobman, Ronald J Wapner. Obstet Gynecol 2014
Jennifer C Donnelly, Lawrence D Platt, Andrei Rebarber, Julia Zachary, William A Grobman, Ronald J Wapner. Obstet Gynecol 2014
9
Committee Opinion No.682: Microarrays and Next-Generation Sequencing Technology: The Use of Advanced Genetic Diagnostic Tools in Obstetrics and Gynecology.
. Obstet Gynecol 2016
. Obstet Gynecol 2016
9
DNA sequencing of maternal plasma reliably identifies trisomy 18 and trisomy 13 as well as Down syndrome: an international collaborative study.
Glenn E Palomaki, Cosmin Deciu, Edward M Kloza, Geralyn M Lambert-Messerlian, James E Haddow, Louis M Neveux, Mathias Ehrich, Dirk van den Boom, Allan T Bombard, Wayne W Grody,[...]. Genet Med 2012
Glenn E Palomaki, Cosmin Deciu, Edward M Kloza, Geralyn M Lambert-Messerlian, James E Haddow, Louis M Neveux, Mathias Ehrich, Dirk van den Boom, Allan T Bombard, Wayne W Grody,[...]. Genet Med 2012
8
Integration of microarray technology into prenatal diagnosis: counselling issues generated during the NICHD clinical trial.
Ronald J Wapner, Deborah A Driscoll, Joe Leigh Simpson. Prenat Diagn 2012
Ronald J Wapner, Deborah A Driscoll, Joe Leigh Simpson. Prenat Diagn 2012
17
Microarray application in prenatal diagnosis: a position statement from the cytogenetics working group of the Italian Society of Human Genetics (SIGU), November 2011.
A Novelli, F R Grati, L Ballarati, L Bernardini, D Bizzoco, L Camurri, R Casalone, L Cardarelli, P Cavalli, R Ciccone,[...]. Ultrasound Obstet Gynecol 2012
A Novelli, F R Grati, L Ballarati, L Bernardini, D Bizzoco, L Camurri, R Casalone, L Cardarelli, P Cavalli, R Ciccone,[...]. Ultrasound Obstet Gynecol 2012
17
25
Genetic counselling and ethical issues with chromosome microarray analysis in prenatal testing.
George McGillivray, Jill A Rosenfeld, R J McKinlay Gardner, Lynn H Gillam. Prenat Diagn 2012
George McGillivray, Jill A Rosenfeld, R J McKinlay Gardner, Lynn H Gillam. Prenat Diagn 2012
11
The clinical utility of microarray technologies applied to prenatal cytogenetics in the presence of a normal conventional karyotype: a review of the literature.
Jonathan L A Callaway, Lisa G Shaffer, Lyn S Chitty, Jill A Rosenfeld, John A Crolla. Prenat Diagn 2013
Jonathan L A Callaway, Lisa G Shaffer, Lyn S Chitty, Jill A Rosenfeld, John A Crolla. Prenat Diagn 2013
8
Use of array CGH in the evaluation of dysmorphology, malformations, developmental delay, and idiopathic mental retardation.
Pawel Stankiewicz, Arthur L Beaudet. Curr Opin Genet Dev 2007
Pawel Stankiewicz, Arthur L Beaudet. Curr Opin Genet Dev 2007
7
Current controversies in prenatal diagnosis 3: is conventional chromosome analysis necessary in the post-array CGH era?
The-Hung Bui, Annalisa Vetro, Orsetta Zuffardi, Lisa G Shaffer. Prenat Diagn 2011
The-Hung Bui, Annalisa Vetro, Orsetta Zuffardi, Lisa G Shaffer. Prenat Diagn 2011
17
DNA sequencing of maternal plasma to detect Down syndrome: an international clinical validation study.
Glenn E Palomaki, Edward M Kloza, Geralyn M Lambert-Messerlian, James E Haddow, Louis M Neveux, Mathias Ehrich, Dirk van den Boom, Allan T Bombard, Cosmin Deciu, Wayne W Grody,[...]. Genet Med 2011
Glenn E Palomaki, Edward M Kloza, Geralyn M Lambert-Messerlian, James E Haddow, Louis M Neveux, Mathias Ehrich, Dirk van den Boom, Allan T Bombard, Cosmin Deciu, Wayne W Grody,[...]. Genet Med 2011
7
Application of chromosomal microarray in the evaluation of abnormal prenatal findings.
S A Yatsenko, S Davis, N W Hendrix, U Surti, S Emery, T Canavan, P Speer, L Hill, M Clemens, A Rajkovic. Clin Genet 2013
S A Yatsenko, S Davis, N W Hendrix, U Surti, S Emery, T Canavan, P Speer, L Hill, M Clemens, A Rajkovic. Clin Genet 2013
21
Prenatal diagnosis of chromosomal abnormalities in fetuses with abnormal cardiac ultrasound findings: evaluation of chromosomal microarray-based analysis.
I Mademont-Soler, C Morales, A Soler, J M Martínez-Crespo, Y Shen, E Margarit, N Clusellas, M Obón, B L Wu, A Sánchez. Ultrasound Obstet Gynecol 2013
I Mademont-Soler, C Morales, A Soler, J M Martínez-Crespo, Y Shen, E Margarit, N Clusellas, M Obón, B L Wu, A Sánchez. Ultrasound Obstet Gynecol 2013
15
Co-cited is the co-citation frequency, indicating how many articles cite the article together with the query article. Similarity is the co-citation as percentage of the times cited of the query article or the article in the search results, whichever is the lowest. These numbers are calculated for the last 100 citations when articles are cited more than 100 times.