https://bmcmedinformdecismak.biomedcentral.com/articles/10.1186/1472-6947-11-17
https://bmcmedinformdecismak.biomedcentral.com/articles/10.1186/1472-6947-11-19
https://bmcmedinformdecismak.biomedcentral.com/articles/10.1186/1472-6947-11-18
https://bmcmedinformdecismak.biomedcentral.com/articles/10.1186/1472-6947-11-16