https://bmcresnotes.biomedcentral.com/articles/10.1186/1756-0500-1-6 https://bmcresnotes.biomedcentral.com/articles/10.1186/1756-0500-1-7 https://bmcresnotes.biomedcentral.com/articles/10.1186/1756-0500-1-9 https://bmcresnotes.biomedcentral.com/articles/10.1186/1756-0500-1-8