https://bmcmusculoskeletdisord.biomedcentral.com/articles/10.1186/1471-2474-5-42 https://bmcmusculoskeletdisord.biomedcentral.com/articles/10.1186/1471-2474-5-41 https://bmcmusculoskeletdisord.biomedcentral.com/articles/10.1186/1471-2474-5-39 https://bmcmusculoskeletdisord.biomedcentral.com/articles/10.1186/1471-2474-5-43 https://bmcmusculoskeletdisord.biomedcentral.com/articles/10.1186/1471-2474-5-40 https://bmcmusculoskeletdisord.biomedcentral.com/articles/10.1186/1471-2474-5-38 https://bmcmusculoskeletdisord.biomedcentral.com/articles/10.1186/1471-2474-5-44 https://bmcmusculoskeletdisord.biomedcentral.com/articles/10.1186/1471-2474-5-46 https://bmcmusculoskeletdisord.biomedcentral.com/articles/10.1186/1471-2474-5-45