1. Department of Obstetrics and Gynecology; Reproductive Medicine; The Chicago Medical School at Rosalind Franklin University of Medicine and Science; Vernon Hills; IL; USA
2. Department of Microbiology and Immunology; The Chicago Medical School at Rosalind Franklin University of Medicine and Science; North Chicago; IL; USA
3. CARE Fertility Group; Nottingham; UK
4. IVF Centre; The Hong Kong Sanatorium and Hospital; Happy Valley; Hong Kong
5. The Reproductive Medicine Unit; Kaplan Medical Center; Hebrew University; Hadassah Medical School; Rehovot; Israel