Central Research Institute of Epidemiology, Moscow, Russian Federation
First Moscow State Medical University I.M. Sechenov, Moscow, Russian Federation
Limited Liability Company "Clinic Tour", Moscow, Russian Federation
Be Well Medical Center, Berkley, Michigan, United States
AIDS Research Consortium of Atlanta, Atlanta, Georgia, United States
Emory University, Atlanta, Georgia, United States
Hopital Saint Louis, Paris Cedex 10, France
Hospital Universitario de Salamanca, Salamanca, Spain
Universitatsklinikum Frankfurt, Frankfurt am Main, Germany
St. James University Hospital, Leeds, United Kingdom
University Hospital of Wales, Cardiff, United Kingdom
The Royal Liverpool University Hospital, Liverpool, United Kingdom
Bach Mai Hospital, Hanoi, Vietnam
Hospital Tengku Ampuan Afzan, Pahang, Malaysia
National University Hospital, Singapore, Singapore
SeaView Research, Inc, Miami, Florida, United States