1. From the Institut National de la Santé et de la Recherche Médicale (INSERM) U434, Centre d'Etude du Polymorphisme Humain (CEPH); Service d'Anatomo-Pathologie, Hôpital Saint-Antoine, Paris, France; Dipartimento di Genetica e Microbiologica, University of Pavia, Pavia, Italy; Department of Obstetrics & Gynaecology, Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong; and the Institute of Genetics, Chaim Sheba Medical Center, Tel-Hashomer, Israel