Methylmalonic acid molecule, illustration. Increased plasma levels may indicate vitamin B12 deficiency. Atoms are represented as spheres with conventional colour coding: hydrogen (white), carbon (black), oxygen (red). | |
Licence : | Libre de droits |
Crédit: | Science Photo Library / Molekuul |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |