M0013763: Mental excercise and long life
- Date:
- October 1954
- Reference:
- WT/D/1/20/1/123/52
Licence: Public Domain Mark
Credit: M0013763: Mental excercise and long life. Source: Wellcome Collection.
Licence: Public Domain Mark
Credit: M0013763: Mental excercise and long life. Source: Wellcome Collection.