Animal experimentation. Researcher measuring a growth on a guinea pig (Cavia porcellus) that has developed in response to a recent injection. The injection may have been administered to test for the possible carcinogenic effect of a chemical | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Bartlett, Linda / National Cancer Institute |
Bildgröße: | 3626 px × 2417 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |