Seckel's dwarfism: analysis of chromosome breakage and sister chromatid exchanges.
D000015:Abnormalities, Multiple / Q000235:genetics; D001847:Bone Diseases / Q000235:genetics; D002648:Child; D002842:Chromatids / Q000473:pathology; D002875:Chromosomes / Q000032:analysis*; D004392:Dwarfism / Q000235:genetics*; D005149:Facial Expression; D006801:Humans; D008297:Male