TY - CONF AU - Crespo Leiro, Marisa PY - 2012 SN - 1053-2498 UR - http://hdl.handle.net/20.500.11940/7524 LA - eng TI - Pre-Existing Neoplasms and Risk for Malignancy after Heart Transplantation. Data from the Spanish Post-Heart Transplant Tumors Registry. VL - 31 ER -