[Value of chromosome studies in prevention of Down's syndrome (mongolism)].
D002869:Chromosome Aberrations; D025063:Chromosome Disorders; D004314:Down Syndrome / Q000235:genetics* / Q000517:prevention & control*; D006801:Humans; D007621:Karyotyping
Valore dell'indagine cromosomica nella prevenzione della sindrome di Down (mongolismo)