Anaesthesia face mask from the nineteenth century. Anaesthetic gases were released into a sponge inside the mask during surgery | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / CC Studio |
Bildgröße: | 3792 px × 3734 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |