Patrycja Nowak-Sliwinska1, Arjan W Griffioen2. 1. School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Geneva, Switzerland. Patrycja.Nowak-Sliwinska@unige.ch. 2. Angiogenesis Laboratory, Department of Medical Oncology, Amsterdam UMC, Cancer Center Amsterdam, 1081 HV, Amsterdam, The Netherlands. a.griffioen@amsterdamumc.nl.