https://bmcmedinformdecismak.biomedcentral.com/articles/10.1186/1472-6947-8-11
https://bmcmedinformdecismak.biomedcentral.com/articles/10.1186/1472-6947-8-12
https://bmcmedinformdecismak.biomedcentral.com/articles/10.1186/1472-6947-8-10