Epidemiology, old and new / [William H. Hamer].
- Hamer, William Heaton, 1862-1936.
- Date:
- 1928
Licence: In copyright
Credit: Epidemiology, old and new / [William H. Hamer]. Source: Wellcome Collection.
191/202 (page 173)
Licence: In copyright
Credit: Epidemiology, old and new / [William H. Hamer]. Source: Wellcome Collection.