1. Calcaneal apophysitis (Sever disease);Hendrix;Clin Podiatr Med Surg,2005
2. Sever JW. Apophysitis of the oscalcis. New York Med. 1912;95:1025-1029.
3. Almaawi A, Boszczyk AM, Daniels TR. Exostosis (Osteochondrosis, Apophysites, and Haglund's Deformity). In: Valderrabano V, Easley M, editors. Foot and Ankle Sports Orthopaedics. Springer International Publishing Switzerland. 2016; p. 209–216.
4. Hoşgören B, Köktener A, Dilmen G. Ultrasonography of the calcaneus in Sever's disease. Indian Pediatr. 2005;42(8):801–3.
5. Do we really need radiographic assessment for the diagnosis of non-specific heel pain (calcaneal apophysitis) in children;Kose;Skeletal Radiol,2010