[1] Siberian State Medical University,Department of Internal Medicine
[2] Ladoke Akintola University of Technology,Faculty of Clinical Sciences
[3] All India Institute of Medical Sciences,Department of Public Health
[4] Far Eastern Federal University,undefined
[5] North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences,undefined
[6] University of Calabar,undefined
[7] Kharkiv National Medical University,undefined
[8] University of Botswana School of Medicine,undefined
[9] Babcock University Teaching Hospital,undefined
[10] University of Cambridge Cambridgeshire Old Trinity Schools,undefined