Betaretrovirus. Fibroblast Virus, Human, Permanent . Oncoviruses Type B . Oncoviruses Type B, Mammalian . Oncoviruses, Type D . Retroviruses, Type D . Type B Oncoviruses . Type B Oncoviruses, Mammalian . Type D Oncornaviruses . Type D Oncoviruses . Betaretroviruses . Oncornavirus, Type D . Oncornaviruses, Type D . Oncovirus, Type B . Oncovirus, Type D . Oncoviruses, Type B . Retrovirus, Type D . Type B Oncovirus . Type B, Oncoviruses . Type D Oncornavirus . Type D Oncovirus . Type D Retrovirus . Retroviruses Type B, Mammalian . Mammalian Type B Retroviruses . Retroviruses Type D . Type B Retroviruses, Mammalian . Type D Retroviruses . ONCOVIRUSES, TYPE D . FIBROBLAST VIRUS, HUMAN, PERMANENT . TYPE D ONCORNAVIRUSES . TYPE D ONCOVIRUSES . TYPE B ONCOVIRUSES, MAMMALIAN . ONCOVIRUSES TYPE B, MAMMALIAN . 0.72