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Hendrix CL (2005). "Calcaneal apophysitis (Sever disease)". Clinics in Podiatric Medicine and Surgery. 22 (1): 55–62, vi. doi:10.1016/j.cpm.2004.08.011. PMID15555843.
Maria Antonietta D'Agostino, MD; Ignazio Olivieri, MD (June 2006). "Enthesitis". Best Practice & Research Clinical Rheumatology. 20 (3). Clinical Rheumatology: 473–86. doi:10.1016/j.berh.2006.03.007. PMID16777577.
Schmitt, SK (June 2017). "Reactive Arthritis". Infectious Disease Clinics of North America (Review). 31 (2): 265–77. doi:10.1016/j.idc.2017.01.002. PMID28292540.