https://bmcendocrdisord.biomedcentral.com/articles/10.1186/s12902-016-0119-5
https://bmcendocrdisord.biomedcentral.com/articles/10.1186/s12902-016-0111-0
https://bmcendocrdisord.biomedcentral.com/articles/10.1186/s12902-016-0124-8
https://bmcendocrdisord.biomedcentral.com/articles/10.1186/s12902-016-0121-y
https://bmcendocrdisord.biomedcentral.com/articles/10.1186/s12902-016-0123-9
https://bmcendocrdisord.biomedcentral.com/articles/10.1186/s12902-016-0122-x
https://bmcendocrdisord.biomedcentral.com/articles/10.1186/s12902-016-0120-z