https://bmccomplementmedtherapies.biomedcentral.com/articles/10.1186/1472-6882-9-26
https://bmccomplementmedtherapies.biomedcentral.com/articles/10.1186/1472-6882-9-28
https://bmccomplementmedtherapies.biomedcentral.com/articles/10.1186/1472-6882-9-27
https://bmccomplementmedtherapies.biomedcentral.com/articles/10.1186/1472-6882-9-30
https://bmccomplementmedtherapies.biomedcentral.com/articles/10.1186/1472-6882-9-32
https://bmccomplementmedtherapies.biomedcentral.com/articles/10.1186/1472-6882-9-31
https://bmccomplementmedtherapies.biomedcentral.com/articles/10.1186/1472-6882-9-29