title: A study of 361 cases of severe unclassifed mental retardation with recurrence in the families.
abstract: Detailed family history obtained from 361 cases of severe mental retardation revealed that more than one sib was affected in a majority of the cases where consanguinity was present in more than one generation. The need for studies in general population is indicated for purposes of evolving strategies for genetic counselling.
authors.affiliation: Associate Professor of Psychiatry, National Institute of Mental Health and Neuro Sciences, Bangalore - 560 029.
authors.forename: H S
authors.initials: HS
authors.lastname: Narayanan
authors.forename: B S
authors.initials: BS
authors.lastname: Rao
authors.forename: P M
authors.initials: PM
authors.lastname: Rao
authors.forename: D K
authors.initials: DK
authors.lastname: Subbakrishna