Disease | |||
---|---|---|---|
Monothetic definition* | Polythetic definition* | ||
*On the basis of clinical signs and symptoms only. | |||
Monothetic definition | Smallpox | Tuberculosis | |
(group 1) | (group 2) | ||
Agent (s) | |||
Polythetic definition | Lung cancer | Bulimia and anorexia | |
(group 3) | (group 4) |