[NEW CHARACTERISTICS OF DOWN'S DISEASE IN THE CZECHOSLOVAKIAN SSR AND ITS THEORETICAL AND PRACTICAL IMPORTANCE].
D003604:Czechoslovakia; D004314:Down Syndrome; D006801:Humans; D013223:Statistics as Topic
CZECHOSLOVAKIA; MONGOLISM; STATISTICS
NOV'E CHARAKTERISTIKY DOWNOVA SYNDROMU V CSSR A JEJICH V'YZNAM TEORETICK'Y A PRAKTICK'Y.