https://hmr.biomedcentral.com/articles/10.1007/s10152-004-0212-4
https://hmr.biomedcentral.com/articles/10.1007/s10152-004-0210-6
https://hmr.biomedcentral.com/articles/10.1007/s10152-004-0211-5
https://hmr.biomedcentral.com/articles/10.1007/s10152-004-0214-2
https://hmr.biomedcentral.com/articles/10.1007/s10152-004-0199-x
https://hmr.biomedcentral.com/articles/10.1007/s10152-004-0195-1
https://hmr.biomedcentral.com/articles/10.1007/s10152-004-0213-3