https://bmcmedinformdecismak.biomedcentral.com/articles/10.1186/1472-6947-9-22
https://bmcmedinformdecismak.biomedcentral.com/articles/10.1186/1472-6947-9-24
https://bmcmedinformdecismak.biomedcentral.com/articles/10.1186/1472-6947-9-23
https://bmcmedinformdecismak.biomedcentral.com/articles/10.1186/1472-6947-9-25