https://hmr.biomedcentral.com/articles/10.1007/BF02189901
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https://hmr.biomedcentral.com/articles/10.1007/BF02189898
https://hmr.biomedcentral.com/articles/10.1007/BF02189891
https://hmr.biomedcentral.com/articles/10.1007/BF02189893
https://hmr.biomedcentral.com/articles/10.1007/BF02189895
https://hmr.biomedcentral.com/articles/10.1007/BF02189897
https://hmr.biomedcentral.com/articles/10.1007/BF02189900
https://hmr.biomedcentral.com/articles/10.1007/BF02189890
https://hmr.biomedcentral.com/articles/10.1007/BF02189892
https://hmr.biomedcentral.com/articles/10.1007/BF02189894
https://hmr.biomedcentral.com/articles/10.1007/BF02189896