1. Bell DJ, Gaillard F et al (2018a) Avascular necrosis causes (mnemonic).
https://radiopaedia.org/articles/avascular-necrosis-causes-mnemonic
. Accessed April 2018
2. Bell DJ, Venkatesh M et al (2018b) Caisson disease.
https://radiopaedia.org/articles/caisson-disease-1
. Accessed April 2018
3. Bomer J, Holscher H (2018) Hip pathology in children.
http://www.radiologyassistant.nl/en/p557dccf34fb1a/hip-pathology-in-children.html
. Accessed July 2018
4. Dillman JR, Hernandez RJ (2009) MRI of Legg-Calve-Perthes disease. AJR Am J Roentgenol 193(5):1394–1407
5. Di Muzio B, Gaillard F et al (2018) Erlenmeyer flask deformity.
https://radiopaedia.org/articles/erlenmeyer-flask-deformity-1
. Accessed April 2018