https://hmr.biomedcentral.com/articles/10.1007/BF01611368 https://hmr.biomedcentral.com/articles/10.1007/BF01611367 https://hmr.biomedcentral.com/articles/10.1007/BF01611364 https://hmr.biomedcentral.com/articles/10.1007/BF01611366 https://hmr.biomedcentral.com/articles/10.1007/BF01611365