Collagen protein molecule, illustration. Collagen is the main component of connective tissue such as skin, cartilage, bones, ligaments and tendons. | |
Lizenzart: | Lizenzfrei |
Credit: | Science Photo Library / NOBEASTSOFIERCE |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |