1. Polynychie congenita sine polydactylie;Ohya;Acta Dermat.,1931
2. Ectopic nail;Kikuchi;Plast. Reconstr. Surg.,1978
3. Two cases of congenital onychoheterotopia;Aoki;Jpn. J. Dermat.,1983
4. Congenital claw like fingers and toes;Egawa;Plast. Reconstr. Surg.,1977
5. Congenital hypoplasia of the little finger associated with nail anomaly;Kiryu;Jpn. Plast. Reconstr. Surg.,1978