References used for this fact sheet
- Encyclopaedia Britannica (1997) [multimedia CD-ROM], Encyclopaedia Britannica Inc, USA. More information here.
- The Family Encyclopaedia of Medicine & Health (1997), Dr Maxine Long (cons.), The Book Company, Sydney.
- Lloyd, M. & Gomez, J. (1981), The Complete Illustrated Medical Handbook, New Burlington Books, London.
|
|