参考文献:
[1] LifeHugger. [010-02-11]. (原始内容存档于2010-05-28).
[2] Braunwald E. (Editor), Heart Disease: A Textbook of Cardiovascular Medicine, Fifth Edition, p. 108, Philadelphia, W.B. Saunders Co., 1997. ISBN 978-0-7216-5666-3.
[3] Van Mieghem, Carlos; Sabbe, Marc; Knockaert, Daniel. . Chest. 2004-04, 125 (4): 1561–1576 [2021-01-31]. ISSN 0012
3692. PMID 15078775. doi:10.1378/chest.125.4.1561. (原始内容存档于2021-03-10).
[4] Circulation. 2005-11-28, 112 (24_suppl): IV–89–IV–110. ISSN 0009-7322. doi:10.1161/CIRCULATIONAHA.105.166561 (英语).
[5] Ronald M. Birse, rev. Patricia E. Knowlden [永久] Oxford Dictionary of National Biography 2004 (Subscription required) - (original source is his biography written by his wife - Elizabeth Muirhead. Alexander Muirhead 1848 - 1920. Oxford, Blackwell: privately printed 1926.)
[6] Proceedings of the Royal Society of London. 1878-12-31, 27 (185-189): 410–414 [2021-01-31]. ISSN 0370-1662. doi:10.1098/rspl.1878.0068. (原始内容存档于2021-03-10) (英语).