https://bmcmedinformdecismak.biomedcentral.com/articles/10.1186/1472-6947-10-39
https://bmcmedinformdecismak.biomedcentral.com/articles/10.1186/1472-6947-10-38
https://bmcmedinformdecismak.biomedcentral.com/articles/10.1186/1472-6947-10-41
https://bmcmedinformdecismak.biomedcentral.com/articles/10.1186/1472-6947-10-40