Trisomy 13 (D1) syndrome: studies on parental age, sex ratio, and survival.
D000015:Abnormalities, Multiple / Q000235:genetics; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D002869:Chromosome Aberrations / Q000235:genetics* / Q000401:mortality; D025063:Chromosome Disorders; D002901:Chromosomes, Human, 13-15; D005190:Family; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008423:Maternal Age; D008875:Middle Aged; D009030:Mosaicism; D010290:Parents; D012744:Sex Ratio; D014314:Trisomy