参考
Murray Longmore, Ian B. Wilinson, Edward H. Dawvidson, Alexander Foulkes and Ahmad R. Mafi Oxford Handbook of Clinical Medicine 8thEdition Oxford University Press 2010 ISBN 978-0-19-923217-8
Clark, ed. by Parveen Kumar, Michael (2005). Kumar and Clark clinical medicine (6th ed.). Edinburgh [etc.]: Elsevier Saunders. p. 267. ISBN 0702027642.