https://bmcmusculoskeletdisord.biomedcentral.com/articles/10.1186/1471-2474-5-32
https://bmcmusculoskeletdisord.biomedcentral.com/articles/10.1186/1471-2474-5-31
https://bmcmusculoskeletdisord.biomedcentral.com/articles/10.1186/1471-2474-5-33