| Bouchier, Christopher Haslett 1995 , Principles and Practice of Medicine, New York: Pearson Professional Limited , Page 438, Part seven | Wikinon, Andrew Bladwin and others 2014 , Oxford handbook of clinical medicine, New York: Oxford University Press Inc, Page 252-253, Part Four |
|---|---|
| Miller and Claire Brackman Keane 1987 , Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Philadelphia: W |
.