https://hmr.biomedcentral.com/articles/10.1007/BF02027685
https://hmr.biomedcentral.com/articles/10.1007/BF02027686
https://hmr.biomedcentral.com/articles/10.1007/BF02027688
https://hmr.biomedcentral.com/articles/10.1007/BF02027687
https://hmr.biomedcentral.com/articles/10.1007/BF02027689
https://hmr.biomedcentral.com/articles/10.1007/BF02027684
https://hmr.biomedcentral.com/articles/10.1007/BF02027690