https://bmccomplementmedtherapies.biomedcentral.com/articles/10.1186/1472-6882-11-54
https://bmccomplementmedtherapies.biomedcentral.com/articles/10.1186/1472-6882-11-56
https://bmccomplementmedtherapies.biomedcentral.com/articles/10.1186/1472-6882-11-55
https://bmccomplementmedtherapies.biomedcentral.com/articles/10.1186/1472-6882-11-58
https://bmccomplementmedtherapies.biomedcentral.com/articles/10.1186/1472-6882-11-53
https://bmccomplementmedtherapies.biomedcentral.com/articles/10.1186/1472-6882-11-57