Nikolaos Vlahos is a Professor and Chairman Second Department of Obstetrics and Gynecology, Aretaieion Hospital, National and Kapodistrian University of Athens, Athens, Greece. He authored/co-authored 160 publications with 2585 citations and an h-index of 26 (Scopus, December 2023). He does research in the field(s) of assisted reproduction, endometriosis, infertility, reproductive endocrinology, and endoscopic surgery.