https://bmcmusculoskeletdisord.biomedcentral.com/articles/10.1186/1471-2474-5-48
https://bmcmusculoskeletdisord.biomedcentral.com/articles/10.1186/1471-2474-5-47
https://bmcmusculoskeletdisord.biomedcentral.com/articles/10.1186/1471-2474-5-49