https://bmcmedinformdecismak.biomedcentral.com/articles/10.1186/1472-6947-9-40
https://bmcmedinformdecismak.biomedcentral.com/articles/10.1186/1472-6947-9-38
https://bmcmedinformdecismak.biomedcentral.com/articles/10.1186/1472-6947-9-37
https://bmcmedinformdecismak.biomedcentral.com/articles/10.1186/1472-6947-9-41
https://bmcmedinformdecismak.biomedcentral.com/articles/10.1186/1472-6947-9-39