1. A classification for congenital limb malformations;Swanson;J Hand Surg,1976
2. Split-hand and split-foot deformities, their types, origin, and transmission;Lewis;Biometrika,1908
3. Congenital malformations of the hands;Kanavel;Arch Surg,1932
4. Congenital deformities of the upper extremities;Birch-Jensen,1949
5. Cleft hand: classification, incidence, and treatment;Barsky;J Bone Joint Surg (Am),1964