Mr. Spear's report to the Local Government Board on the continued prevalence of diphtheria in the Aylesbury urban sanitary district.
- Spear, John.
- Date:
- 1888
Licence: Public Domain Mark
Credit: Mr. Spear's report to the Local Government Board on the continued prevalence of diphtheria in the Aylesbury urban sanitary district. Source: Wellcome Collection.
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