[Should we treat pregnancy at the beginning?].
D000033:Abortion, Threatened / Q000188:drug therapy* / Q000453:epidemiology; D002869:Chromosome Aberrations / Q000453:epidemiology / Q000517:prevention & control*; D025063:Chromosome Disorders; D005260:Female; D006728:Hormones / Q000627:therapeutic use*; D006801:Humans; D011247:Pregnancy; D013223:Statistics as Topic; D014314:Trisomy
D006728:Hormones
Faut-il traiter les grossesses au début.