01004cam a22002411  4500001001300000003000400013005001700017008004100034010001700075035002000092040002400112050001600136060002100152100003800173245008400211260004300295300002600338410007800364500006900442504014800511650003800659740006500697sg 38000048 DLC20260227112741.0820128s1938    xx a          000 0 eng    asg 38000048   a(OCoLC)14753089  aDLCcDNLMdArUdDLC00aRC602b.P430 aW1bME449 no.2291 aPenrose, L. S.q(Lionel Sharples)12aA clinical and genetic study of 1280 cases of mental defect,cby L. S. Penrose.  aLondon,bH. M. Stationery off.,c1938.  a1 p. l., 159 p.bill.20aMedical Research Council (Great Britain)tSpecial report series,vno. 229  aAt head of title: ...  Privy council.  Medical research council.  a"List of references": p. 71-73; "List of publications from the Research department, Royal eastern counties' institution, Colchester": p. 74-75. 0aMental retardationvCase studies.0 aMental defect, A clinical and genetic study of 1280 cases of