RASSF1 and breast neoplasm: RASSF1A methylation was found in 85 % [33–35], 68 % [36], 65 % [37], 59 % [38], 58 % [21] and 33 % [24] of the breast tumors analyzed, HIN-1 in 74 % [39]), 73 % [33] and 49 % [21] of the cases.