https://bmccomplementmedtherapies.biomedcentral.com/articles/10.1186/1472-6882-8-61
https://bmccomplementmedtherapies.biomedcentral.com/articles/10.1186/1472-6882-8-62
https://bmccomplementmedtherapies.biomedcentral.com/articles/10.1186/1472-6882-8-64
https://bmccomplementmedtherapies.biomedcentral.com/articles/10.1186/1472-6882-8-66
https://bmccomplementmedtherapies.biomedcentral.com/articles/10.1186/1472-6882-8-63
https://bmccomplementmedtherapies.biomedcentral.com/articles/10.1186/1472-6882-8-65