https://bmcendocrdisord.biomedcentral.com/articles/10.1186/s12902-021-00819-1 https://bmcendocrdisord.biomedcentral.com/articles/10.1186/s12902-021-00847-x https://bmcendocrdisord.biomedcentral.com/articles/10.1186/s12902-021-00848-w https://bmcendocrdisord.biomedcentral.com/articles/10.1186/s12902-021-00846-y