Enuresis in twins.
D000017:ABO Blood-Group System; D000367:Age Factors; D002675:Child, Preschool; D004200:Diseases in Twins; D004775:Enuresis / Q000097:blood / Q000453:epidemiology / Q000235:genetics*; D005260:Female; D005386:Fingersucking / Q000453:epidemiology; D006801:Humans; D008297:Male; D009259:Nail Biting / Q000453:epidemiology; D012737:Sex Factors
D000017:ABO Blood-Group System