
Keywords: Morphine sulfate (PubChem CID: 5464280); Buprenorphine (PubChem CID: 644073); Oxycodone hydrochloride (PubChem CID: 5462350); Hydrocodone bitartrate (PubChem CID: 20831824); Fentanyl citrate (PubChem CID: 13810)Ventilation; Respiration; Arterial blood gas