https://bmcmusculoskeletdisord.biomedcentral.com/articles/10.1186/1471-2474-5-21
https://bmcmusculoskeletdisord.biomedcentral.com/articles/10.1186/1471-2474-5-23
https://bmcmusculoskeletdisord.biomedcentral.com/articles/10.1186/1471-2474-5-22