Institution: | 1. Reproductive Medicine, Department of Obstetrics and Gynecology, Chicago Medical School at Rosalind Franklin University of Medicine and Science, Vernon Hills, IL, USA;2. Department of Microbiology and Immunology, Chicago Medical School at Rosalind Franklin University of Medicine and Science, North Chicago, IL, USA;3. Department of Obstetrics and Gynecology, Nasu Red Cross Hospital, Otawara, Tochigi Prefecture, Japan |