Panagiota Goulia, Christos Mantas, Danai Dimitroula, Dimitrios Mantis, Thomas Hyphantis. BMC Infect Dis 2010
Times Cited: 214
Times Cited: 214
Times Cited
Times Co-cited
Similarity
Factors Associated With Mental Health Outcomes Among Health Care Workers Exposed to Coronavirus Disease 2019.
Jianbo Lai, Simeng Ma, Ying Wang, Zhongxiang Cai, Jianbo Hu, Ning Wei, Jiang Wu, Hui Du, Tingting Chen, Ruiting Li,[...]. JAMA Netw Open 2020
Jianbo Lai, Simeng Ma, Ying Wang, Zhongxiang Cai, Jianbo Hu, Ning Wei, Jiang Wu, Hui Du, Tingting Chen, Ruiting Li,[...]. JAMA Netw Open 2020
54
Long-term psychological and occupational effects of providing hospital healthcare during SARS outbreak.
Robert G Maunder, William J Lancee, Kenneth E Balderson, Jocelyn P Bennett, Bjug Borgundvaag, Susan Evans, Christopher M B Fernandes, David S Goldbloom, Mona Gupta, Jonathan J Hunter,[...]. Emerg Infect Dis 2006
Robert G Maunder, William J Lancee, Kenneth E Balderson, Jocelyn P Bennett, Bjug Borgundvaag, Susan Evans, Christopher M B Fernandes, David S Goldbloom, Mona Gupta, Jonathan J Hunter,[...]. Emerg Infect Dis 2006
31
Psychological impact of severe acute respiratory syndrome on health workers in a tertiary hospital.
Mian-Yoon Chong, Wen-Chih Wang, Wen-Chien Hsieh, Chun-Yi Lee, Nien-Mu Chiu, Wei-Chiang Yeh, Otiao-Lai Huang, Jong-Kwang Wen, Chao-Long Chen. Br J Psychiatry 2004
Mian-Yoon Chong, Wen-Chih Wang, Wen-Chien Hsieh, Chun-Yi Lee, Nien-Mu Chiu, Wei-Chiang Yeh, Otiao-Lai Huang, Jong-Kwang Wen, Chao-Long Chen. Br J Psychiatry 2004
31
Psychosocial effects of SARS on hospital staff: survey of a large tertiary care institution.
Leslie A Nickell, Eric J Crighton, C Shawn Tracy, Hadi Al-Enazy, Yemisi Bolaji, Sagina Hanjrah, Ayesha Hussain, Samia Makhlouf, Ross E G Upshur. CMAJ 2004
Leslie A Nickell, Eric J Crighton, C Shawn Tracy, Hadi Al-Enazy, Yemisi Bolaji, Sagina Hanjrah, Ayesha Hussain, Samia Makhlouf, Ross E G Upshur. CMAJ 2004
28
Prevalence of depression, anxiety, and insomnia among healthcare workers during the COVID-19 pandemic: A systematic review and meta-analysis.
Sofia Pappa, Vasiliki Ntella, Timoleon Giannakas, Vassilis G Giannakoulis, Eleni Papoutsi, Paraskevi Katsaounou. Brain Behav Immun 2020
Sofia Pappa, Vasiliki Ntella, Timoleon Giannakas, Vassilis G Giannakoulis, Eleni Papoutsi, Paraskevi Katsaounou. Brain Behav Immun 2020
25
The psychological impact of the SARS epidemic on hospital employees in China: exposure, risk perception, and altruistic acceptance of risk.
Ping Wu, Yunyun Fang, Zhiqiang Guan, Bin Fan, Junhui Kong, Zhongling Yao, Xinhua Liu, Cordelia J Fuller, Ezra Susser, Jin Lu,[...]. Can J Psychiatry 2009
Ping Wu, Yunyun Fang, Zhiqiang Guan, Bin Fan, Junhui Kong, Zhongling Yao, Xinhua Liu, Cordelia J Fuller, Ezra Susser, Jin Lu,[...]. Can J Psychiatry 2009
25
Factors associated with the psychological impact of severe acute respiratory syndrome on nurses and other hospital workers in Toronto.
Robert G Maunder, William J Lancee, Sean Rourke, Jonathan J Hunter, David Goldbloom, Ken Balderson, Patricia Petryshen, Rosalie Steinberg, Donald Wasylenki, David Koh,[...]. Psychosom Med 2004
Robert G Maunder, William J Lancee, Sean Rourke, Jonathan J Hunter, David Goldbloom, Ken Balderson, Patricia Petryshen, Rosalie Steinberg, Donald Wasylenki, David Koh,[...]. Psychosom Med 2004
23
Severe acute respiratory syndrome (SARS) in Hong Kong in 2003: stress and psychological impact among frontline healthcare workers.
Cindy W C Tam, Edwin P F Pang, Linda C W Lam, Helen F K Chiu. Psychol Med 2004
Cindy W C Tam, Edwin P F Pang, Linda C W Lam, Helen F K Chiu. Psychol Med 2004
22
Psychological impact of the 2003 severe acute respiratory syndrome outbreak on health care workers in a medium size regional general hospital in Singapore.
Angelina O M Chan, Chan Yiong Huak. Occup Med (Lond) 2004
Angelina O M Chan, Chan Yiong Huak. Occup Med (Lond) 2004
21
Risk perception and impact of Severe Acute Respiratory Syndrome (SARS) on work and personal lives of healthcare workers in Singapore: what can we learn?
David Koh, Meng Kin Lim, Sin Eng Chia, Soo Meng Ko, Feng Qian, Vivian Ng, Ban Hock Tan, Kok Seng Wong, Wuen Ming Chew, Hui Kheng Tang,[...]. Med Care 2005
David Koh, Meng Kin Lim, Sin Eng Chia, Soo Meng Ko, Feng Qian, Vivian Ng, Ban Hock Tan, Kok Seng Wong, Wuen Ming Chew, Hui Kheng Tang,[...]. Med Care 2005
20
Occurrence, prevention, and management of the psychological effects of emerging virus outbreaks on healthcare workers: rapid review and meta-analysis.
Steve Kisely, Nicola Warren, Laura McMahon, Christine Dalais, Irene Henry, Dan Siskind. BMJ 2020
Steve Kisely, Nicola Warren, Laura McMahon, Christine Dalais, Irene Henry, Dan Siskind. BMJ 2020
20
Psychological impact of the pandemic (H1N1) 2009 on general hospital workers in Kobe.
Kunitaka Matsuishi, Ayako Kawazoe, Hissei Imai, Atsushi Ito, Kentaro Mouri, Noboru Kitamura, Keiko Miyake, Koichi Mino, Masanori Isobe, Shizuo Takamiya,[...]. Psychiatry Clin Neurosci 2012
Kunitaka Matsuishi, Ayako Kawazoe, Hissei Imai, Atsushi Ito, Kentaro Mouri, Noboru Kitamura, Keiko Miyake, Koichi Mino, Masanori Isobe, Shizuo Takamiya,[...]. Psychiatry Clin Neurosci 2012
20
The psychological impact of quarantine and how to reduce it: rapid review of the evidence.
Samantha K Brooks, Rebecca K Webster, Louise E Smith, Lisa Woodland, Simon Wessely, Neil Greenberg, Gideon James Rubin. Lancet 2020
Samantha K Brooks, Rebecca K Webster, Louise E Smith, Lisa Woodland, Simon Wessely, Neil Greenberg, Gideon James Rubin. Lancet 2020
19
Survey of stress reactions among health care workers involved with the SARS outbreak.
YaMei Bai, Chao-Cheng Lin, Chih-Yuan Lin, Jen-Yeu Chen, Ching-Mo Chue, Pesus Chou. Psychiatr Serv 2004
YaMei Bai, Chao-Cheng Lin, Chih-Yuan Lin, Jen-Yeu Chen, Ching-Mo Chue, Pesus Chou. Psychiatr Serv 2004
18
Mental health care for medical staff in China during the COVID-19 outbreak.
Qiongni Chen, Mining Liang, Yamin Li, Jincai Guo, Dongxue Fei, Ling Wang, Li He, Caihua Sheng, Yiwen Cai, Xiaojuan Li,[...]. Lancet Psychiatry 2020
Qiongni Chen, Mining Liang, Yamin Li, Jincai Guo, Dongxue Fei, Ling Wang, Li He, Caihua Sheng, Yiwen Cai, Xiaojuan Li,[...]. Lancet Psychiatry 2020
18
The psychological impact of severe acute respiratory syndrome outbreak on healthcare workers in emergency departments and how they cope.
Tai W Wong, Josephine K Y Yau, Cecilia L W Chan, Rosalie S Y Kwong, Samuel M Y Ho, Chor C Lau, Fei L Lau, Chau H Lit. Eur J Emerg Med 2005
Tai W Wong, Josephine K Y Yau, Cecilia L W Chan, Rosalie S Y Kwong, Samuel M Y Ho, Chor C Lau, Fei L Lau, Chau H Lit. Eur J Emerg Med 2005
17
Healthcare Workers Emotions, Perceived Stressors and Coping Strategies During a MERS-CoV Outbreak.
Imran Khalid, Tabindeh J Khalid, Mohammed R Qabajah, Aletta G Barnard, Ismael A Qushmaq. Clin Med Res 2016
Imran Khalid, Tabindeh J Khalid, Mohammed R Qabajah, Aletta G Barnard, Ismael A Qushmaq. Clin Med Res 2016
17
Psychological Impact of the COVID-19 Pandemic on Health Care Workers in Singapore.
Benjamin Y Q Tan, Nicholas W S Chew, Grace K H Lee, Mingxue Jing, Yihui Goh, Leonard L L Yeo, Ka Zhang, Howe-Keat Chin, Aftab Ahmad, Faheem Ahmed Khan,[...]. Ann Intern Med 2020
Benjamin Y Q Tan, Nicholas W S Chew, Grace K H Lee, Mingxue Jing, Yihui Goh, Leonard L L Yeo, Ka Zhang, Howe-Keat Chin, Aftab Ahmad, Faheem Ahmed Khan,[...]. Ann Intern Med 2020
17
A brief measure for assessing generalized anxiety disorder: the GAD-7.
Robert L Spitzer, Kurt Kroenke, Janet B W Williams, Bernd Löwe. Arch Intern Med 2006
Robert L Spitzer, Kurt Kroenke, Janet B W Williams, Bernd Löwe. Arch Intern Med 2006
17
Immediate and sustained psychological impact of an emerging infectious disease outbreak on health care workers.
Grainne M McAlonan, Antoinette M Lee, Vinci Cheung, Charlton Cheung, Kenneth W T Tsang, Pak C Sham, Siew E Chua, Josephine G W S Wong. Can J Psychiatry 2007
Grainne M McAlonan, Antoinette M Lee, Vinci Cheung, Charlton Cheung, Kenneth W T Tsang, Pak C Sham, Siew E Chua, Josephine G W S Wong. Can J Psychiatry 2007
16
Depression after exposure to stressful events: lessons learned from the severe acute respiratory syndrome epidemic.
Xinhua Liu, Meghana Kakade, Cordelia J Fuller, Bin Fan, Yunyun Fang, Junhui Kong, Zhiqiang Guan, Ping Wu. Compr Psychiatry 2012
Xinhua Liu, Meghana Kakade, Cordelia J Fuller, Bin Fan, Yunyun Fang, Junhui Kong, Zhiqiang Guan, Ping Wu. Compr Psychiatry 2012
16
Psychological status of medical workforce during the COVID-19 pandemic: A cross-sectional study.
Wen Lu, Hang Wang, Yuxing Lin, Li Li. Psychiatry Res 2020
Wen Lu, Hang Wang, Yuxing Lin, Li Li. Psychiatry Res 2020
16
Impact on mental health and perceptions of psychological care among medical and nursing staff in Wuhan during the 2019 novel coronavirus disease outbreak: A cross-sectional study.
Lijun Kang, Simeng Ma, Min Chen, Jun Yang, Ying Wang, Ruiting Li, Lihua Yao, Hanping Bai, Zhongxiang Cai, Bing Xiang Yang,[...]. Brain Behav Immun 2020
Lijun Kang, Simeng Ma, Min Chen, Jun Yang, Ying Wang, Ruiting Li, Lihua Yao, Hanping Bai, Zhongxiang Cai, Bing Xiang Yang,[...]. Brain Behav Immun 2020
16
The immediate psychological and occupational impact of the 2003 SARS outbreak in a teaching hospital.
Robert Maunder, Jonathan Hunter, Leslie Vincent, Jocelyn Bennett, Nathalie Peladeau, Molyn Leszcz, Joel Sadavoy, Lieve M Verhaeghe, Rosalie Steinberg, Tony Mazzulli. CMAJ 2003
Robert Maunder, Jonathan Hunter, Leslie Vincent, Jocelyn Bennett, Nathalie Peladeau, Molyn Leszcz, Joel Sadavoy, Lieve M Verhaeghe, Rosalie Steinberg, Tony Mazzulli. CMAJ 2003
15
Managing mental health challenges faced by healthcare workers during covid-19 pandemic.
Neil Greenberg, Mary Docherty, Sam Gnanapragasam, Simon Wessely. BMJ 2020
Neil Greenberg, Mary Docherty, Sam Gnanapragasam, Simon Wessely. BMJ 2020
14
Immediate Psychological Responses and Associated Factors during the Initial Stage of the 2019 Coronavirus Disease (COVID-19) Epidemic among the General Population in China.
Cuiyan Wang, Riyu Pan, Xiaoyang Wan, Yilin Tan, Linkang Xu, Cyrus S Ho, Roger C Ho. Int J Environ Res Public Health 2020
Cuiyan Wang, Riyu Pan, Xiaoyang Wan, Yilin Tan, Linkang Xu, Cyrus S Ho, Roger C Ho. Int J Environ Res Public Health 2020
14
Mental Health and Psychosocial Problems of Medical Health Workers during the COVID-19 Epidemic in China.
Wen-Rui Zhang, Kun Wang, Lu Yin, Wen-Feng Zhao, Qing Xue, Mao Peng, Bao-Quan Min, Qing Tian, Hai-Xia Leng, Jia-Lin Du,[...]. Psychother Psychosom 2020
Wen-Rui Zhang, Kun Wang, Lu Yin, Wen-Feng Zhao, Qing Xue, Mao Peng, Bao-Quan Min, Qing Tian, Hai-Xia Leng, Jia-Lin Du,[...]. Psychother Psychosom 2020
14
Psychological impact of the 2015 MERS outbreak on hospital workers and quarantined hemodialysis patients.
Sang Min Lee, Won Sub Kang, Ah-Rang Cho, Tae Kim, Jin Kyung Park. Compr Psychiatry 2018
Sang Min Lee, Won Sub Kang, Ah-Rang Cho, Tae Kim, Jin Kyung Park. Compr Psychiatry 2018
14
Impact on health care workers employed in high-risk areas during the Toronto SARS outbreak.
Rima Styra, Laura Hawryluck, Susan Robinson, Sonja Kasapinovic, Calvin Fones, Wayne L Gold. J Psychosom Res 2008
Rima Styra, Laura Hawryluck, Susan Robinson, Sonja Kasapinovic, Calvin Fones, Wayne L Gold. J Psychosom Res 2008
13
The mental health of medical workers in Wuhan, China dealing with the 2019 novel coronavirus.
Lijun Kang, Yi Li, Shaohua Hu, Min Chen, Can Yang, Bing Xiang Yang, Ying Wang, Jianbo Hu, Jianbo Lai, Xiancang Ma,[...]. Lancet Psychiatry 2020
Lijun Kang, Yi Li, Shaohua Hu, Min Chen, Can Yang, Bing Xiang Yang, Ying Wang, Jianbo Hu, Jianbo Lai, Xiancang Ma,[...]. Lancet Psychiatry 2020
13
Mental Symptoms in Different Health Professionals During the SARS Attack: A Follow-up Study.
For-Wey Lung, Yi-Ching Lu, Yong-Yuan Chang, Bih-Ching Shu. Psychiatr Q 2009
For-Wey Lung, Yi-Ching Lu, Yong-Yuan Chang, Bih-Ching Shu. Psychiatr Q 2009
13
Severe acute respiratory syndrome-related psychiatric and posttraumatic morbidities and coping responses in medical staff within a primary health care setting in Singapore.
Kang Sim, Phui Nah Chong, Yiong Huak Chan, Winnie Shok Wen Soon. J Clin Psychiatry 2004
Kang Sim, Phui Nah Chong, Yiong Huak Chan, Winnie Shok Wen Soon. J Clin Psychiatry 2004
16
Vicarious traumatization in the general public, members, and non-members of medical teams aiding in COVID-19 control.
Zhenyu Li, Jingwu Ge, Meiling Yang, Jianping Feng, Mei Qiao, Riyue Jiang, Jiangjiang Bi, Gaofeng Zhan, Xiaolin Xu, Long Wang,[...]. Brain Behav Immun 2020
Zhenyu Li, Jingwu Ge, Meiling Yang, Jianping Feng, Mei Qiao, Riyue Jiang, Jiangjiang Bi, Gaofeng Zhan, Xiaolin Xu, Long Wang,[...]. Brain Behav Immun 2020
12
A multinational, multicentre study on the psychological outcomes and associated physical symptoms amongst healthcare workers during COVID-19 outbreak.
Nicholas W S Chew, Grace K H Lee, Benjamin Y Q Tan, Mingxue Jing, Yihui Goh, Nicholas J H Ngiam, Leonard L L Yeo, Aftab Ahmad, Faheem Ahmed Khan, Ganesh Napolean Shanmugam,[...]. Brain Behav Immun 2020
Nicholas W S Chew, Grace K H Lee, Benjamin Y Q Tan, Mingxue Jing, Yihui Goh, Nicholas J H Ngiam, Leonard L L Yeo, Aftab Ahmad, Faheem Ahmed Khan, Ganesh Napolean Shanmugam,[...]. Brain Behav Immun 2020
12
The PHQ-9: validity of a brief depression severity measure.
K Kroenke, R L Spitzer, J B Williams. J Gen Intern Med 2001
K Kroenke, R L Spitzer, J B Williams. J Gen Intern Med 2001
12
Psychological effects of the SARS outbreak in Hong Kong on high-risk health care workers.
Siew E Chua, Vinci Cheung, Charlton Cheung, Grainne M McAlonan, Josephine W S Wong, Erik P T Cheung, Marco T Y Chan, Michael M C Wong, Siu W Tang, Khai M Choy,[...]. Can J Psychiatry 2004
Siew E Chua, Vinci Cheung, Charlton Cheung, Grainne M McAlonan, Josephine W S Wong, Erik P T Cheung, Marco T Y Chan, Michael M C Wong, Siu W Tang, Khai M Choy,[...]. Can J Psychiatry 2004
12
Fear of severe acute respiratory syndrome (SARS) among health care workers.
Samuel M Y Ho, Rosalie S Y Kwong-Lo, Christine W Y Mak, Joe S Wong. J Consult Clin Psychol 2005
Samuel M Y Ho, Rosalie S Y Kwong-Lo, Christine W Y Mak, Joe S Wong. J Consult Clin Psychol 2005
12
Mental Health Outcomes Among Frontline and Second-Line Health Care Workers During the Coronavirus Disease 2019 (COVID-19) Pandemic in Italy.
Rodolfo Rossi, Valentina Socci, Francesca Pacitti, Giorgio Di Lorenzo, Antinisca Di Marco, Alberto Siracusano, Alessandro Rossi. JAMA Netw Open 2020
Rodolfo Rossi, Valentina Socci, Francesca Pacitti, Giorgio Di Lorenzo, Antinisca Di Marco, Alberto Siracusano, Alessandro Rossi. JAMA Netw Open 2020
12
Psychological Impact and Coping Strategies of Frontline Medical Staff in Hunan Between January and March 2020 During the Outbreak of Coronavirus Disease 2019 (COVID‑19) in Hubei, China.
Haozheng Cai, Baoren Tu, Jing Ma, Limin Chen, Lei Fu, Yongfang Jiang, Quan Zhuang. Med Sci Monit 2020
Haozheng Cai, Baoren Tu, Jing Ma, Limin Chen, Lei Fu, Yongfang Jiang, Quan Zhuang. Med Sci Monit 2020
11
Generalized anxiety disorder, depressive symptoms and sleep quality during COVID-19 outbreak in China: a web-based cross-sectional survey.
Yeen Huang, Ning Zhao. Psychiatry Res 2020
Yeen Huang, Ning Zhao. Psychiatry Res 2020
11
Timely mental health care for the 2019 novel coronavirus outbreak is urgently needed.
Yu-Tao Xiang, Yuan Yang, Wen Li, Ling Zhang, Qinge Zhang, Teris Cheung, Chee H Ng. Lancet Psychiatry 2020
Yu-Tao Xiang, Yuan Yang, Wen Li, Ling Zhang, Qinge Zhang, Teris Cheung, Chee H Ng. Lancet Psychiatry 2020
11
The occupational and psychosocial impact of SARS on academic physicians in three affected hospitals.
Sherry L Grace, Karen Hershenfield, Emma Robertson, Donna E Stewart. Psychosomatics 2005
Sherry L Grace, Karen Hershenfield, Emma Robertson, Donna E Stewart. Psychosomatics 2005
15
Prevalence of psychiatric morbidity and psychological adaptation of the nurses in a structured SARS caring unit during outbreak: a prospective and periodic assessment study in Taiwan.
Tung-Ping Su, Te-Cheng Lien, Chih-Yi Yang, Yiet Ling Su, Jia-Horng Wang, Sing-Ling Tsai, Jeo-Chen Yin. J Psychiatr Res 2007
Tung-Ping Su, Te-Cheng Lien, Chih-Yi Yang, Yiet Ling Su, Jia-Horng Wang, Sing-Ling Tsai, Jeo-Chen Yin. J Psychiatr Res 2007
10
A Systematic, Thematic Review of Social and Occupational Factors Associated With Psychological Outcomes in Healthcare Employees During an Infectious Disease Outbreak.
Samantha Kelly Brooks, Rebecca Dunn, Richard Amlôt, Gideon James Rubin, Neil Greenberg. J Occup Environ Med 2018
Samantha Kelly Brooks, Rebecca Dunn, Richard Amlôt, Gideon James Rubin, Neil Greenberg. J Occup Environ Med 2018
10
Impact of severe respiratory syndrome on anxiety levels of front-line health care workers.
E Poon, K S Liu, D L Cheong, C K Lee, L Y C Yam, W N Tang. Hong Kong Med J 2004
E Poon, K S Liu, D L Cheong, C K Lee, L Y C Yam, W N Tang. Hong Kong Med J 2004
16
The psychological effect of severe acute respiratory syndrome on emergency department staff.
C-Y Lin, Y-C Peng, Y-H Wu, J Chang, C-H Chan, D-Y Yang. Emerg Med J 2007
C-Y Lin, Y-C Peng, Y-H Wu, J Chang, C-H Chan, D-Y Yang. Emerg Med J 2007
10
Facing SARS: psychological impacts on SARS team nurses and psychiatric services in a Taiwan general hospital.
Shwu-Hua Lee, Yeong-Yuh Juang, Yi-Jen Su, Hsiu-Lan Lee, Yi-Hui Lin, Chia-Chen Chao. Gen Hosp Psychiatry 2005
Shwu-Hua Lee, Yeong-Yuh Juang, Yi-Jen Su, Hsiu-Lan Lee, Yi-Hui Lin, Chia-Chen Chao. Gen Hosp Psychiatry 2005
10
Prevalence of psychiatric disorders among Toronto hospital workers one to two years after the SARS outbreak.
William J Lancee, Robert G Maunder, David S Goldbloom. Psychiatr Serv 2008
William J Lancee, Robert G Maunder, David S Goldbloom. Psychiatr Serv 2008
10
Psychological distress of nurses in Taiwan who worked during the outbreak of SARS.
Cheng-Sheng Chen, Hsiu-Yueh Wu, Pinchen Yang, Cheng-Fang Yen. Psychiatr Serv 2005
Cheng-Sheng Chen, Hsiu-Yueh Wu, Pinchen Yang, Cheng-Fang Yen. Psychiatr Serv 2005
10
Multidisciplinary research priorities for the COVID-19 pandemic: a call for action for mental health science.
Emily A Holmes, Rory C O'Connor, V Hugh Perry, Irene Tracey, Simon Wessely, Louise Arseneault, Clive Ballard, Helen Christensen, Roxane Cohen Silver, Ian Everall,[...]. Lancet Psychiatry 2020
Emily A Holmes, Rory C O'Connor, V Hugh Perry, Irene Tracey, Simon Wessely, Louise Arseneault, Clive Ballard, Helen Christensen, Roxane Cohen Silver, Ian Everall,[...]. Lancet Psychiatry 2020
9
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.