Born in 1981, Martijn van den Hoogen studied medicine in Nijmegen and graduated in 2005. As a young student he studied the relationship between bleedingtime / PFA and bleeding complications after renal biopsies. From 2006 till 2014 he combined his training in nephrology with a PhD program, studying the effects of rituximab induction in renal transplantation in a large, blinded RCT. Since november 2014 he is working for the Erasmus Transplant Group in Rotterdam, where he has a myriad of tasks, including research, patient care, and eduction of medical students, nurses, young doctors / nephrologist and senor staff. His current research topics includes CFZ533 (a new costimulation blocking monoclonal antibody), Cynrize (C1 esterase inhibitor in AMBR), Banff working group on recurrent kidney diseases, POSEIDON (normothermic kidney perfusion), and MARS & ZENN (Self-management and nurse-led intervention after kidneytransplantation). In everyday clinical tasks he is involded in both the kidney and lung transplant program in the Erasmus Medical Centre. Since 2009 he shares his life with Katarzyna Grygiel, vascular and kidney transplant surgeon in Warsaw, Poland, who he met the Hesperis Course.