Flexion creases on fingers.
D000293:Adolescent; D000328:Adult; D000782:Aneuploidy; D001317:Austria; D002904:Chromosomes, Human, 21-22 and Y; D003878:Dermatoglyphics / Q000145:classification*; D005260:Female; D005384:Finger Joint / Q000000981:diagnostic imaging; D005385:Fingers / Q000000981:diagnostic imaging; D014644:Genetic Variation; D006801:Humans; D008297:Male; D001523:Mental Disorders / Q000175:diagnosis; D011859:Radiography; D014314:Trisomy