Cytogenetic diseases.
D000649:Amniocentesis; D002869:Chromosome Aberrations / Q000235:genetics*; D002872:Chromosome Deletion; D025063:Chromosome Disorders; D004314:Down Syndrome / Q000235:genetics; D005260:Female; D006801:Humans; D007153:Immunologic Deficiency Syndromes / Q000235:genetics; D007621:Karyotyping; D008297:Male; D011218:Prader-Willi Syndrome / Q000235:genetics; D011247:Pregnancy; D011296:Prenatal Diagnosis; D012729:Sex Chromosome Aberrations / Q000235:genetics; D014314:Trisomy