1. Morrissy RT, Weinstein SL (2006) Lovell and Winter’s pediatric orthopaedics, 6th edn. Lippincott, Williams & Wilkins, Philadelphia
2. Herring JA (2008) Tachdjian’s pediatric orthopaedics. From the Texas Scottish Rite Hospital for Children, 4th edn. Saunders Elsevier, Philadelphia
3. Dobbs MB, Gurnett CA (2009) Update on clubfoot: etiology and treatment. Clin Orthop Relat Res 467:1146–1153
4. Wynne-Davies R (1964) Family studies and the cause of congenital clubfoot. Talipes equinovarus, talipes calcaneovalgus and metatarsus varus. J Bone Joint Surg (Br) 46:445–463
5. Dodwell E, Risoe P, Wright J (2013) A prospective determination of environmental factors associated with clubfoot (poster). Pediatric Orthopaedic Society of North America (POSNA) Annual Meeting, Toronto