Editor's column: On the risk of fresh gene mutation in "older men".
D000367:Age Factors; D002901:Chromosomes, Human, 13-15; D002902:Chromosomes, Human, 16-18; D002904:Chromosomes, Human, 21-22 and Y; D005260:Female; D005796:Genes; D006801:Humans; D008297:Male; D008423:Maternal Age; D009154:Mutation; D010290:Parents; D011247:Pregnancy; D014314:Trisomy