TY - BOOK AU - Hallgren Bertil TI - Retinitis pigmentosa combined with congenital deafness; with vestibulo-cerebellar ataxia and mental abnormality in Proportion of cases: A clinical and genetico-statistical study U1 - 576.5 PY - 1959/// CY - Copenhagen PB - Ejnar Munksgaard KW - Genetics ER -