Manganese, in large enough doses, causes a disease called manganism, which looks a lot like Parkinson's. As a matter of fact, it's very hard to clinically differentiate.
Le manganèse, à doses suffisantes, cause une maladie, le manganisme, qui ressemble beaucoup à la maladie de Parkinson. De fait, il est très difficile de les différencier cliniquement.