Simian crease.
D000015:Abnormalities, Multiple / Q000175:diagnosis; D002869:Chromosome Aberrations / Q000175:diagnosis; D025063:Chromosome Disorders; D003878:Dermatoglyphics; D004314:Down Syndrome / Q000175:diagnosis; D005865:Gestational Age; D006228:Hand Deformities, Congenital; D006801:Humans; D007231:Infant, Newborn; D008607:Intellectual Disability / Q000175:diagnosis; D008661:Metabolism, Inborn Errors / Q000175:diagnosis