is Professor of Obstetrics and Gynecology at The Hebrew University of Jerusalem. Chairman of the Department of Obstetrics and Gynecology (Emeritus), Hadassah-University Hospital, Jerusalem.
He was elected in 2005 by The Council of the City of Jerusalem as Honorary Citizen.
He is President of International Academy of Human Reproduction
Fellow International Academy of Perinatal Medicine
Past Deputy President World Association Perinatal Medicine
He is interested in the ethical aspects of reproduction and gynecological and obstetric practice, and has chaired the Ethical Committee of IFFS and the FIGO Committee for the Study of Ethical Aspects on Human Reproduction.
His research has involved experimental and clinical studies in the endocrinology of human reproduction, development of methods for contraception, and development of technologies in practice of assisted reproduction. He has also carried out research on pathological conditions in pregnancy.
He has produced more than 450 publications in medical journals, chapters in books and several books in the field of obstetrics & gynecology and reproduction.
He is a member of the editorial boards of various national and international journals.
In Israel he has been chairman of the National Committee for Residency Training and Vice President of the Israel Medical Council. He was appointed Judge by the Ministry of Justice of Israel in District Court of Appeals. He was President of the Israel Medical Association and Chairman of Board of Examination for Medical License, State of Israel. He served as President of Israel Society of Obstetrics and Gynecology
Abroad, he is a founder member of the European Society of Human Reproduction, the International Society of the Fetus as a Patient, the International Society of Gynecological Endocrinology, the European society for Gynecological and Obstetric Investigation, and the International Society for the Study of Pathophysiology of Pregnancy.
He has presided over several international congresses in the field of OB/GYN and Reproduction and has been a member of the FIGO Executive Board. He has chaired the Committee of European Examination for Excellency in Obstetrics and Gynecology and has been President of the Extended European Board of Obstetrics and Gynecology.
He was vice-president of the European Association of Gynecology and Obstetrics. He has been President of the Society of Gestosis, Vice President of the World Association of Perinatal Medicine and currently President of the International Academy of Human Reproduction.
He is an Honorary Fellow of the American College and a Fellow ad Eundem of the Royal College. He has honorary fellowships of the German, Polish, Rumanian, Hungarian, Macedonian, Slovak Republic, Brazilian, and Israeli Societies of Obstetrics and Gynecology. He is also an honorary fellow of the Fertility and Sterility Society of Peru, the Implantation Society of Japan, the Rumanian Society of Assisted Reproduction, the European Association of Perinatal Medicine and Medical Association of Croatia. He is a Doctor (Honoris Causa) of the University of Medicine and Pharmacy of Craiova.