https://bmcmusculoskeletdisord.biomedcentral.com/articles/10.1186/1471-2474-6-46
https://bmcmusculoskeletdisord.biomedcentral.com/articles/10.1186/1471-2474-6-48
https://bmcmusculoskeletdisord.biomedcentral.com/articles/10.1186/1471-2474-6-49
https://bmcmusculoskeletdisord.biomedcentral.com/articles/10.1186/1471-2474-6-47