Digestive system: R. de Graaf's investigation of the pancreatic juice of dogs
Licence: Public Domain Mark
Credit: Digestive system: R. de Graaf's investigation of the pancreatic juice of dogs. Wellcome Collection. Source: Wellcome Collection.
Licence: Public Domain Mark
Credit: Digestive system: R. de Graaf's investigation of the pancreatic juice of dogs. Wellcome Collection. Source: Wellcome Collection.