https://bmcmedinformdecismak.biomedcentral.com/articles/10.1186/1472-6947-11-3
https://bmcmedinformdecismak.biomedcentral.com/articles/10.1186/1472-6947-11-4
https://bmcmedinformdecismak.biomedcentral.com/articles/10.1186/1472-6947-11-1
https://bmcmedinformdecismak.biomedcentral.com/articles/10.1186/1472-6947-11-2