Dr Nikolaos P. Polyzos obtained his MD (2003) and PhD (2010) degrees in the University of Ioannina in Greece. He completed his specialty training in obstetrics and gynaecology in the University Hospital of Larissa in Greece. He joined the Center for Reproductive Medicine Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel, Belgium, in 2011, where in 2013 he obtained his second PhD degree in biomedical sciences and works as a gynaecologist visiting fellow. Currently he is a professor at Aarhus University, Denmark since March 2015 and in the Center for Reproductive Medicine at Vrije Universiteit Brussel since October 2015. He is a specialist in reproductive endocrinology and assisted reproductive technology. Dr Polyzos has served as reviewer for 15 journals, as associate editor for one journal and as editorial consultant for the Physician’s Information and Education Resource of the American College of Physicians. He is an author of over 190 publications; a member of ESHRE.