ID 181222468 © Olandah23 | Megapixl.com
Sharing is not just caring, it's also about giving credit - add this image to your page and give credit to the talented photographer who captured it.:
anaesthesia anaesthetic analgesic anesthesia anesthetic atom atomic atoms background biochemistry biology board book carbon chemical chemistry compound concept conceptn drug education ester esterase formula handwritten healthcare hydrogen killer medical medicine metabolism molecular molecule narcotic nitrogen opioid oxygen pain pharmaceutical pharmacology relief remifentanil remifentanyl science sedation sedative structural study white write written