Citing:*Dorland's Medical Dictionary for Health Consumers. 2007 by Saunders, an imprint of Elsevier *The American Heritage Medical Dictionary. 2007, 2004
Edited by Cyril H. Wecht and John T. Rago. Boca Raton: CRC Press, an imprint of Taylor and Francis Group. ISBN 0849319706. Bass, William; Jon Jefferson