J C Hogg, P T Macklem, W M Thurlbeck. N Engl J Med 1968
Times Cited: 1179
Times Cited: 1179
Times Cited
Times Co-cited
Similarity
Small-airway obstruction and emphysema in chronic obstructive pulmonary disease.
John E McDonough, Ren Yuan, Masaru Suzuki, Nazgol Seyednejad, W Mark Elliott, Pablo G Sanchez, Alexander C Wright, Warren B Gefter, Leslie Litzky, Harvey O Coxson,[...]. N Engl J Med 2011
John E McDonough, Ren Yuan, Masaru Suzuki, Nazgol Seyednejad, W Mark Elliott, Pablo G Sanchez, Alexander C Wright, Warren B Gefter, Leslie Litzky, Harvey O Coxson,[...]. N Engl J Med 2011
40
The nature of small-airway obstruction in chronic obstructive pulmonary disease.
James C Hogg, Fanny Chu, Soraya Utokaparch, Ryan Woods, W Mark Elliott, Liliana Buzatu, Ruben M Cherniack, Robert M Rogers, Frank C Sciurba, Harvey O Coxson,[...]. N Engl J Med 2004
James C Hogg, Fanny Chu, Soraya Utokaparch, Ryan Woods, W Mark Elliott, Liliana Buzatu, Ruben M Cherniack, Robert M Rogers, Frank C Sciurba, Harvey O Coxson,[...]. N Engl J Med 2004
35
Small airways disease in mild and moderate chronic obstructive pulmonary disease: a cross-sectional study.
Hyun-Kyoung Koo, Dragoş M Vasilescu, Steven Booth, Aileen Hsieh, Orestis L Katsamenis, Nick Fishbane, W Mark Elliott, Miranda Kirby, Peter Lackie, Ian Sinclair,[...]. Lancet Respir Med 2018
Hyun-Kyoung Koo, Dragoş M Vasilescu, Steven Booth, Aileen Hsieh, Orestis L Katsamenis, Nick Fishbane, W Mark Elliott, Miranda Kirby, Peter Lackie, Ian Sinclair,[...]. Lancet Respir Med 2018
21
The Contribution of Small Airway Obstruction to the Pathogenesis of Chronic Obstructive Pulmonary Disease.
James C Hogg, Peter D Paré, Tillie-Louise Hackett. Physiol Rev 2017
James C Hogg, Peter D Paré, Tillie-Louise Hackett. Physiol Rev 2017
19
Computed tomography-based biomarker provides unique signature for diagnosis of COPD phenotypes and disease progression.
Craig J Galbán, Meilan K Han, Jennifer L Boes, Komal A Chughtai, Charles R Meyer, Timothy D Johnson, Stefanie Galbán, Alnawaz Rehemtulla, Ella A Kazerooni, Fernando J Martinez,[...]. Nat Med 2012
Craig J Galbán, Meilan K Han, Jennifer L Boes, Komal A Chughtai, Charles R Meyer, Timothy D Johnson, Stefanie Galbán, Alnawaz Rehemtulla, Ella A Kazerooni, Fernando J Martinez,[...]. Nat Med 2012
18
Association between Functional Small Airway Disease and FEV1 Decline in Chronic Obstructive Pulmonary Disease.
Surya P Bhatt, Xavier Soler, Xin Wang, Susan Murray, Antonio R Anzueto, Terri H Beaty, Aladin M Boriek, Richard Casaburi, Gerard J Criner, Alejandro A Diaz,[...]. Am J Respir Crit Care Med 2016
Surya P Bhatt, Xavier Soler, Xin Wang, Susan Murray, Antonio R Anzueto, Terri H Beaty, Aladin M Boriek, Richard Casaburi, Gerard J Criner, Alejandro A Diaz,[...]. Am J Respir Crit Care Med 2016
18
Genetic epidemiology of COPD (COPDGene) study design.
Elizabeth A Regan, John E Hokanson, James R Murphy, Barry Make, David A Lynch, Terri H Beaty, Douglas Curran-Everett, Edwin K Silverman, James D Crapo. COPD 2010
Elizabeth A Regan, John E Hokanson, James R Murphy, Barry Make, David A Lynch, Terri H Beaty, Douglas Curran-Everett, Edwin K Silverman, James D Crapo. COPD 2010
14
Standardisation of spirometry.
M R Miller, J Hankinson, V Brusasco, F Burgos, R Casaburi, A Coates, R Crapo, P Enright, C P M van der Grinten, P Gustafsson,[...]. Eur Respir J 2005
M R Miller, J Hankinson, V Brusasco, F Burgos, R Casaburi, A Coates, R Crapo, P Enright, C P M van der Grinten, P Gustafsson,[...]. Eur Respir J 2005
13
The relations between structural changes in small airways and pulmonary-function tests.
M Cosio, H Ghezzo, J C Hogg, R Corbin, M Loveland, J Dosman, P T Macklem. N Engl J Med 1978
M Cosio, H Ghezzo, J C Hogg, R Corbin, M Loveland, J Dosman, P T Macklem. N Engl J Med 1978
13
Site of airway obstruction in pulmonary disease: direct measurement of intrabronchial pressure.
M Yanai, K Sekizawa, T Ohrui, H Sasaki, T Takishima. J Appl Physiol (1985) 1992
M Yanai, K Sekizawa, T Ohrui, H Sasaki, T Takishima. J Appl Physiol (1985) 1992
13
Total Airway Count on Computed Tomography and the Risk of Chronic Obstructive Pulmonary Disease Progression. Findings from a Population-based Study.
Miranda Kirby, Naoya Tanabe, Wan C Tan, Guohai Zhou, Ma'en Obeidat, Cameron J Hague, Jonathon Leipsic, Jean Bourbeau, Don D Sin, James C Hogg,[...]. Am J Respir Crit Care Med 2018
Miranda Kirby, Naoya Tanabe, Wan C Tan, Guohai Zhou, Ma'en Obeidat, Cameron J Hague, Jonathon Leipsic, Jean Bourbeau, Don D Sin, James C Hogg,[...]. Am J Respir Crit Care Med 2018
15
Clinical Significance of Symptoms in Smokers with Preserved Pulmonary Function.
Prescott G Woodruff, R Graham Barr, Eugene Bleecker, Stephanie A Christenson, David Couper, Jeffrey L Curtis, Natalia A Gouskova, Nadia N Hansel, Eric A Hoffman, Richard E Kanner,[...]. N Engl J Med 2016
Prescott G Woodruff, R Graham Barr, Eugene Bleecker, Stephanie A Christenson, David Couper, Jeffrey L Curtis, Natalia A Gouskova, Nadia N Hansel, Eric A Hoffman, Richard E Kanner,[...]. N Engl J Med 2016
12
Clinical and Radiologic Disease in Smokers With Normal Spirometry.
Elizabeth A Regan, David A Lynch, Douglas Curran-Everett, Jeffrey L Curtis, John H M Austin, Philippe A Grenier, Hans-Ulrich Kauczor, William C Bailey, Dawn L DeMeo, Richard H Casaburi,[...]. JAMA Intern Med 2015
Elizabeth A Regan, David A Lynch, Douglas Curran-Everett, Jeffrey L Curtis, John H M Austin, Philippe A Grenier, Hans-Ulrich Kauczor, William C Bailey, Dawn L DeMeo, Richard H Casaburi,[...]. JAMA Intern Med 2015
12
Interpretative strategies for lung function tests.
R Pellegrino, G Viegi, V Brusasco, R O Crapo, F Burgos, R Casaburi, A Coates, C P M van der Grinten, P Gustafsson, J Hankinson,[...]. Eur Respir J 2005
R Pellegrino, G Viegi, V Brusasco, R O Crapo, F Burgos, R Casaburi, A Coates, C P M van der Grinten, P Gustafsson, J Hankinson,[...]. Eur Respir J 2005
11
Techniques of assessing small airways dysfunction.
William McNulty, Omar S Usmani. Eur Clin Respir J 2014
William McNulty, Omar S Usmani. Eur Clin Respir J 2014
11
Noninvasive Imaging Biomarker Identifies Small Airway Damage in Severe Chronic Obstructive Pulmonary Disease.
Dragoş M Vasilescu, Fernando J Martinez, Nathaniel Marchetti, Craig J Galbán, Charles Hatt, Catherine A Meldrum, Chandra Dass, Naoya Tanabe, Rishindra M Reddy, Amir Lagstein,[...]. Am J Respir Crit Care Med 2019
Dragoş M Vasilescu, Fernando J Martinez, Nathaniel Marchetti, Craig J Galbán, Charles Hatt, Catherine A Meldrum, Chandra Dass, Naoya Tanabe, Rishindra M Reddy, Amir Lagstein,[...]. Am J Respir Crit Care Med 2019
19
Changes in forced expiratory volume in 1 second over time in COPD.
Jørgen Vestbo, Lisa D Edwards, Paul D Scanlon, Julie C Yates, Alvar Agusti, Per Bakke, Peter M A Calverley, Bartolome Celli, Harvey O Coxson, Courtney Crim,[...]. N Engl J Med 2011
Jørgen Vestbo, Lisa D Edwards, Paul D Scanlon, Julie C Yates, Alvar Agusti, Per Bakke, Peter M A Calverley, Bartolome Celli, Harvey O Coxson, Courtney Crim,[...]. N Engl J Med 2011
10
The prediction of small airway dimensions using computed tomography.
Yasutaka Nakano, Jonathan C Wong, Pim A de Jong, Lilliana Buzatu, Taishi Nagao, Harvey O Coxson, W Mark Elliott, James C Hogg, Peter D Paré. Am J Respir Crit Care Med 2005
Yasutaka Nakano, Jonathan C Wong, Pim A de Jong, Lilliana Buzatu, Taishi Nagao, Harvey O Coxson, W Mark Elliott, James C Hogg, Peter D Paré. Am J Respir Crit Care Med 2005
10
Resistance of central and peripheral airways measured by a retrograde catheter.
P T Macklem, J Mead. J Appl Physiol 1967
P T Macklem, J Mead. J Appl Physiol 1967
10
CT-Definable Subtypes of Chronic Obstructive Pulmonary Disease: A Statement of the Fleischner Society.
David A Lynch, John H M Austin, James C Hogg, Philippe A Grenier, Hans-Ulrich Kauczor, Alexander A Bankier, R Graham Barr, Thomas V Colby, Jeffrey R Galvin, Pierre Alain Gevenois,[...]. Radiology 2015
David A Lynch, John H M Austin, James C Hogg, Philippe A Grenier, Hans-Ulrich Kauczor, Alexander A Bankier, R Graham Barr, Thomas V Colby, Jeffrey R Galvin, Pierre Alain Gevenois,[...]. Radiology 2015
9
At the Root: Defining and Halting Progression of Early Chronic Obstructive Pulmonary Disease.
Fernando J Martinez, MeiLan K Han, James P Allinson, R Graham Barr, Richard C Boucher, Peter M A Calverley, Bartolome R Celli, Stephanie A Christenson, Ronald G Crystal, Malin Fagerås,[...]. Am J Respir Crit Care Med 2018
Fernando J Martinez, MeiLan K Han, James P Allinson, R Graham Barr, Richard C Boucher, Peter M A Calverley, Bartolome R Celli, Stephanie A Christenson, Ronald G Crystal, Malin Fagerås,[...]. Am J Respir Crit Care Med 2018
9
Lung-Function Trajectories Leading to Chronic Obstructive Pulmonary Disease.
Peter Lange, Bartolome Celli, Alvar Agustí, Gorm Boje Jensen, Miguel Divo, Rosa Faner, Stefano Guerra, Jacob Louis Marott, Fernando D Martinez, Pablo Martinez-Camblor,[...]. N Engl J Med 2015
Peter Lange, Bartolome Celli, Alvar Agustí, Gorm Boje Jensen, Miguel Divo, Rosa Faner, Stefano Guerra, Jacob Louis Marott, Fernando D Martinez, Pablo Martinez-Camblor,[...]. N Engl J Med 2015
9
Global Strategy for the Diagnosis, Management, and Prevention of Chronic Obstructive Lung Disease 2017 Report. GOLD Executive Summary.
Claus F Vogelmeier, Gerard J Criner, Fernando J Martinez, Antonio Anzueto, Peter J Barnes, Jean Bourbeau, Bartolome R Celli, Rongchang Chen, Marc Decramer, Leonardo M Fabbri,[...]. Am J Respir Crit Care Med 2017
Claus F Vogelmeier, Gerard J Criner, Fernando J Martinez, Antonio Anzueto, Peter J Barnes, Jean Bourbeau, Bartolome R Celli, Rongchang Chen, Marc Decramer, Leonardo M Fabbri,[...]. Am J Respir Crit Care Med 2017
9
Global strategy for the diagnosis, management, and prevention of chronic obstructive pulmonary disease. NHLBI/WHO Global Initiative for Chronic Obstructive Lung Disease (GOLD) Workshop summary.
R A Pauwels, A S Buist, P M Calverley, C R Jenkins, S S Hurd. Am J Respir Crit Care Med 2001
R A Pauwels, A S Buist, P M Calverley, C R Jenkins, S S Hurd. Am J Respir Crit Care Med 2001
9
Comparison of computed density and microscopic morphometry in pulmonary emphysema.
P A Gevenois, P De Vuyst, V de Maertelaer, J Zanen, D Jacobovitz, M G Cosio, J C Yernault. Am J Respir Crit Care Med 1996
P A Gevenois, P De Vuyst, V de Maertelaer, J Zanen, D Jacobovitz, M G Cosio, J C Yernault. Am J Respir Crit Care Med 1996
9
Analysis of airway pathology in COPD using a combination of computed tomography, micro-computed tomography and histology.
Naoya Tanabe, Dragoş M Vasilescu, Miranda Kirby, Harvey O Coxson, Stijn E Verleden, Bart M Vanaudenaerde, Daisuke Kinose, Yasutaka Nakano, Peter D Paré, James C Hogg. Eur Respir J 2018
Naoya Tanabe, Dragoş M Vasilescu, Miranda Kirby, Harvey O Coxson, Stijn E Verleden, Bart M Vanaudenaerde, Daisuke Kinose, Yasutaka Nakano, Peter D Paré, James C Hogg. Eur Respir J 2018
19
Global strategy for the diagnosis, management, and prevention of chronic obstructive pulmonary disease: GOLD executive summary.
Jørgen Vestbo, Suzanne S Hurd, Alvar G Agustí, Paul W Jones, Claus Vogelmeier, Antonio Anzueto, Peter J Barnes, Leonardo M Fabbri, Fernando J Martinez, Masaharu Nishimura,[...]. Am J Respir Crit Care Med 2013
Jørgen Vestbo, Suzanne S Hurd, Alvar G Agustí, Paul W Jones, Claus Vogelmeier, Antonio Anzueto, Peter J Barnes, Leonardo M Fabbri, Fernando J Martinez, Masaharu Nishimura,[...]. Am J Respir Crit Care Med 2013
8
Computed tomographic measurements of airway dimensions and emphysema in smokers. Correlation with lung function.
Y Nakano, S Muro, H Sakai, T Hirai, K Chin, M Tsukino, K Nishimura, H Itoh, P D Paré, J C Hogg,[...]. Am J Respir Crit Care Med 2000
Y Nakano, S Muro, H Sakai, T Hirai, K Chin, M Tsukino, K Nishimura, H Itoh, P D Paré, J C Hogg,[...]. Am J Respir Crit Care Med 2000
8
Pathophysiology of airflow limitation in chronic obstructive pulmonary disease.
James C Hogg. Lancet 2004
James C Hogg. Lancet 2004
8
Exploring the relevance and extent of small airways dysfunction in asthma (ATLANTIS): baseline data from a prospective cohort study.
Dirkje S Postma, Chris Brightling, Simonetta Baldi, Maarten Van den Berge, Leonardo M Fabbri, Alessandra Gagnatelli, Alberto Papi, Thys Van der Molen, Klaus F Rabe, Salman Siddiqui,[...]. Lancet Respir Med 2019
Dirkje S Postma, Chris Brightling, Simonetta Baldi, Maarten Van den Berge, Leonardo M Fabbri, Alessandra Gagnatelli, Alberto Papi, Thys Van der Molen, Klaus F Rabe, Salman Siddiqui,[...]. Lancet Respir Med 2019
8
The pathology of small airways disease in COPD: historical aspects and future directions.
Andrew Higham, Anne Marie Quinn, José Eduardo D Cançado, Dave Singh. Respir Res 2019
Andrew Higham, Anne Marie Quinn, José Eduardo D Cançado, Dave Singh. Respir Res 2019
12
Small airways disease: time for a revisit?
James A Stockley, Brendan G Cooper, Robert A Stockley, Elizabeth Sapey. Int J Chron Obstruct Pulmon Dis 2017
James A Stockley, Brendan G Cooper, Robert A Stockley, Elizabeth Sapey. Int J Chron Obstruct Pulmon Dis 2017
29
The body-mass index, airflow obstruction, dyspnea, and exercise capacity index in chronic obstructive pulmonary disease.
Bartolome R Celli, Claudia G Cote, Jose M Marin, Ciro Casanova, Maria Montes de Oca, Reina A Mendez, Victor Pinto Plata, Howard J Cabral. N Engl J Med 2004
Bartolome R Celli, Claudia G Cote, Jose M Marin, Ciro Casanova, Maria Montes de Oca, Reina A Mendez, Victor Pinto Plata, Howard J Cabral. N Engl J Med 2004
7
Small airway obstruction in COPD: new insights based on micro-CT imaging and MRI imaging.
James C Hogg, John E McDonough, Masaru Suzuki. Chest 2013
James C Hogg, John E McDonough, Masaru Suzuki. Chest 2013
7
Evaluation of COPD Longitudinally to Identify Predictive Surrogate End-points (ECLIPSE).
J Vestbo, W Anderson, H O Coxson, C Crim, F Dawber, L Edwards, G Hagan, K Knobil, D A Lomas, W MacNee,[...]. Eur Respir J 2008
J Vestbo, W Anderson, H O Coxson, C Crim, F Dawber, L Edwards, G Hagan, K Knobil, D A Lomas, W MacNee,[...]. Eur Respir J 2008
7
Airflow limitation and airway dimensions in chronic obstructive pulmonary disease.
Masaru Hasegawa, Yasuyuki Nasuhara, Yuya Onodera, Hironi Makita, Katsura Nagai, Satoshi Fuke, Yoko Ito, Tomoko Betsuyaku, Masaharu Nishimura. Am J Respir Crit Care Med 2006
Masaru Hasegawa, Yasuyuki Nasuhara, Yuya Onodera, Hironi Makita, Katsura Nagai, Satoshi Fuke, Yoko Ito, Tomoko Betsuyaku, Masaharu Nishimura. Am J Respir Crit Care Med 2006
7
Club cell protein 16 and disease progression in chronic obstructive pulmonary disease.
Hye Yun Park, Andrew Churg, Joanne L Wright, Yuexin Li, Sheena Tam, S F Paul Man, Donald Tashkin, Robert A Wise, John E Connett, Don D Sin. Am J Respir Crit Care Med 2013
Hye Yun Park, Andrew Churg, Joanne L Wright, Yuexin Li, Sheena Tam, S F Paul Man, Donald Tashkin, Robert A Wise, John E Connett, Don D Sin. Am J Respir Crit Care Med 2013
7
Chronic obstructive pulmonary disease exacerbations in the COPDGene study: associated radiologic phenotypes.
Meilan K Han, Ella A Kazerooni, David A Lynch, Lyrica X Liu, Susan Murray, Jeffrey L Curtis, Gerard J Criner, Victor Kim, Russell P Bowler, Nicola A Hanania,[...]. Radiology 2011
Meilan K Han, Ella A Kazerooni, David A Lynch, Lyrica X Liu, Susan Murray, Jeffrey L Curtis, Gerard J Criner, Victor Kim, Russell P Bowler, Nicola A Hanania,[...]. Radiology 2011
6
Multi-ethnic reference values for spirometry for the 3-95-yr age range: the global lung function 2012 equations.
Philip H Quanjer, Sanja Stanojevic, Tim J Cole, Xaver Baur, Graham L Hall, Bruce H Culver, Paul L Enright, John L Hankinson, Mary S M Ip, Jinping Zheng,[...]. Eur Respir J 2012
Philip H Quanjer, Sanja Stanojevic, Tim J Cole, Xaver Baur, Graham L Hall, Bruce H Culver, Paul L Enright, John L Hankinson, Mary S M Ip, Jinping Zheng,[...]. Eur Respir J 2012
6
Survival after lung volume reduction in chronic obstructive pulmonary disease: insights from small airway pathology.
James C Hogg, Fanny S F Chu, Wan C Tan, Don D Sin, Sanjay A Patel, Peter D Pare, Fernando J Martinez, Robert M Rogers, Barry J Make, Gerard J Criner,[...]. Am J Respir Crit Care Med 2007
James C Hogg, Fanny S F Chu, Wan C Tan, Don D Sin, Sanjay A Patel, Peter D Pare, Fernando J Martinez, Robert M Rogers, Barry J Make, Gerard J Criner,[...]. Am J Respir Crit Care Med 2007
6
Goblet and Clara cells of human distal airways: evidence for smoking induced changes in their numbers.
A B Lumsden, A McLean, D Lamb. Thorax 1984
A B Lumsden, A McLean, D Lamb. Thorax 1984
6
Secretory IgA Deficiency in Individual Small Airways Is Associated with Persistent Inflammation and Remodeling.
Vasiliy V Polosukhin, Bradley W Richmond, Rui-Hong Du, Justin M Cates, Pingsheng Wu, Hui Nian, Pierre P Massion, Lorraine B Ware, Jae Woo Lee, Alexey V Kononov,[...]. Am J Respir Crit Care Med 2017
Vasiliy V Polosukhin, Bradley W Richmond, Rui-Hong Du, Justin M Cates, Pingsheng Wu, Hui Nian, Pierre P Massion, Lorraine B Ware, Jae Woo Lee, Alexey V Kononov,[...]. Am J Respir Crit Care Med 2017
15
Global strategy for the diagnosis, management, and prevention of chronic obstructive pulmonary disease: GOLD executive summary.
Klaus F Rabe, Suzanne Hurd, Antonio Anzueto, Peter J Barnes, Sonia A Buist, Peter Calverley, Yoshinosuke Fukuchi, Christine Jenkins, Roberto Rodriguez-Roisin, Chris van Weel,[...]. Am J Respir Crit Care Med 2007
Klaus F Rabe, Suzanne Hurd, Antonio Anzueto, Peter J Barnes, Sonia A Buist, Peter Calverley, Yoshinosuke Fukuchi, Christine Jenkins, Roberto Rodriguez-Roisin, Chris van Weel,[...]. Am J Respir Crit Care Med 2007
6
Characterisation of COPD heterogeneity in the ECLIPSE cohort.
Alvar Agusti, Peter M A Calverley, Bartolome Celli, Harvey O Coxson, Lisa D Edwards, David A Lomas, William MacNee, Bruce E Miller, Steve Rennard, Edwin K Silverman,[...]. Respir Res 2010
Alvar Agusti, Peter M A Calverley, Bartolome Celli, Harvey O Coxson, Lisa D Edwards, David A Lomas, William MacNee, Bruce E Miller, Steve Rennard, Edwin K Silverman,[...]. Respir Res 2010
6
Risk of COPD with obstruction in active smokers with normal spirometry and reduced diffusion capacity.
Ben-Gary Harvey, Yael Strulovici-Barel, Robert J Kaner, Abraham Sanders, Thomas L Vincent, Jason G Mezey, Ronald G Crystal. Eur Respir J 2015
Ben-Gary Harvey, Yael Strulovici-Barel, Robert J Kaner, Abraham Sanders, Thomas L Vincent, Jason G Mezey, Ronald G Crystal. Eur Respir J 2015
8
Measurement of FEF25-75% and FEF75% does not contribute to clinical decision making.
Philip H Quanjer, Daniel J Weiner, Jeffrey J Pretto, Danny J Brazzale, Piotr W Boros. Eur Respir J 2014
Philip H Quanjer, Daniel J Weiner, Jeffrey J Pretto, Danny J Brazzale, Piotr W Boros. Eur Respir J 2014
6
Micro-Computed Tomography Comparison of Preterminal Bronchioles in Centrilobular and Panlobular Emphysema.
Naoya Tanabe, Dragoş M Vasilescu, John E McDonough, Daisuke Kinose, Masaru Suzuki, Joel D Cooper, Peter D Paré, James C Hogg. Am J Respir Crit Care Med 2017
Naoya Tanabe, Dragoş M Vasilescu, John E McDonough, Daisuke Kinose, Masaru Suzuki, Joel D Cooper, Peter D Paré, James C Hogg. Am J Respir Crit Care Med 2017
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.