Pellagra is a deficiency disease caused by a lack of nicotinic acid or its precursor tryptophan in the diet. It is characterized by dermatitis, diarrhoea, and mental disturbance, and is often linked to overdependence on corn as a staple food. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Clinical Photography |
Bildgröße: | 3186 px × 2067 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |