https://bmccomplementmedtherapies.biomedcentral.com/articles/10.1186/1472-6882-8-20
https://bmccomplementmedtherapies.biomedcentral.com/articles/10.1186/1472-6882-8-18
https://bmccomplementmedtherapies.biomedcentral.com/articles/10.1186/1472-6882-8-22
https://bmccomplementmedtherapies.biomedcentral.com/articles/10.1186/1472-6882-8-23
https://bmccomplementmedtherapies.biomedcentral.com/articles/10.1186/1472-6882-8-24
https://bmccomplementmedtherapies.biomedcentral.com/articles/10.1186/1472-6882-8-21
https://bmccomplementmedtherapies.biomedcentral.com/articles/10.1186/1472-6882-8-19