APOBEC3B and breast cancer: Several associations of the APOBEC3B deletion with different complex human diseases have already been reported [17, 25–42], including an association of the APOBEC3B deletion with breast cancer risk in a Chinese population (OR=1.31/1.76 for one/two copies of the deletion) identified by Long and coworkers [17] and in two smaller studies in two other Asiatic populations, i.e., Iranian [36] and Malaysian [40].