https://bmccomplementmedtherapies.biomedcentral.com/articles/10.1186/1472-6882-10-43
https://bmccomplementmedtherapies.biomedcentral.com/articles/10.1186/1472-6882-10-45
https://bmccomplementmedtherapies.biomedcentral.com/articles/10.1186/1472-6882-10-42
https://bmccomplementmedtherapies.biomedcentral.com/articles/10.1186/1472-6882-10-44
https://bmccomplementmedtherapies.biomedcentral.com/articles/10.1186/1472-6882-10-46