https://bmcmedinformdecismak.biomedcentral.com/articles/10.1186/1472-6947-10-43
https://bmcmedinformdecismak.biomedcentral.com/articles/10.1186/1472-6947-10-42
https://bmcmedinformdecismak.biomedcentral.com/articles/10.1186/1472-6947-10-44
https://bmcmedinformdecismak.biomedcentral.com/articles/10.1186/1472-6947-10-45