1. Common congenital hand conditions.;Chong;Singapore Med J,2010
2. Duplication of the thumb. A retrospective review of two hundred and thirty-seven cases.;Tada;J Bone Joint Surg Am,1983
3. Duplication of the thumb. A 20-year retrospective review.;Naasan;J Hand Surg Br,1994
4. Prevalence and characteristics of congenital hand and foot anomalies requiring surgery in remote areas of Thailand.;Luangjarmekorn;Chula Med J,2017
5. The results of surgery for polydactyly of the thumb. A review.;Wassel;Clin Orthop Relat Res,1969