Medex Healthcare Research, Inc., Chicago, Illinois, United States
Medex Healthcare Reasearch, Inc., New York, New York, United States
Optimed Research, LTD, Columbus, Ohio, United States
Temple University Hospital Department of OB/GYN, Philadelphia, Pennsylvania, United States
Harper University Hospital Department of Infectious Diseases, Detroit, Michigan, United States
Harper University Hospital Department of Infectious Diseases, Detroit, Michigan, United States
Temple University Hospital Department of OB/GYN, Philadelphia, Pennsylvania, United States