https://hmr.biomedcentral.com/articles/10.1007/s10152-014-0399-y
https://hmr.biomedcentral.com/articles/10.1007/s10152-014-0398-z
https://hmr.biomedcentral.com/articles/10.1007/s10152-014-0397-0
https://hmr.biomedcentral.com/articles/10.1007/s10152-014-0400-9