M0009684: Nitrous oxide for a dental operation.
- Date:
- 02 October 1946
- Reference:
- WT/D/1/20/1/85/42
Licence: In copyright
Credit: M0009684: Nitrous oxide for a dental operation. Source: Wellcome Collection.
Licence: In copyright
Credit: M0009684: Nitrous oxide for a dental operation. Source: Wellcome Collection.