Tumor bank Ovarian Cancer” (TOC) was initiated in the year 2000 and extended in January 2004 to a multicentric setting. Currently, thirteen University hospitals and clinics within Europe, are involved in this international project. Each participating center uses the same SOPs for prospective collection of fresh frozen or paraffin embedded tumor tissue, blood, serum and ascites samples from ovarian cancer patients. TOC took the lead on biobanking in several European projects, such as OVCAD, OCTIPS and Gannet53.