Research into the chemical processes in the small intestine of man / by Allan Macfadyen, M.D. Ed., M. Nencki, M.D., and N. Sieber, M.D.

Licence: Public Domain Mark

Credit: Research into the chemical processes in the small intestine of man / by Allan Macfadyen, M.D. Ed., M. Nencki, M.D., and N. Sieber, M.D. Source: Wellcome Collection.