Cytogenetic findings in moderate and severe mental retardation : a study of an institutionalized population of 1991 patients
Card's contents:605,254 CYTOGENETIC Cytogenetic findings in moderate and severe mental retardation : a study of an institutionalized population of 1991 patients / J. P. Fryns [et al.] ; from the Division of Human Genetics, Department of Hunan Biology, University of Leuven. - Leuven : Almqvist and Wiksell, 1984. - 23 s. ; 25 cm (Acta Paediatrica Scandinavica, ISSN 0300-8843 ; suppl. 313)