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General anesthesia - Mayo Clinic
Anesthetic - Wikipedia
Anesthetic | Definition, Types, & History | Britannica
Anesthesia - National Institute of General Medical Sciences
Anesthesia: What It Is, Side Effects, Risks & Types - Cleveland Clinic
What is anesthesia? Local, regional, general, and more - Medical News Today
Anesthesia | Johns Hopkins Medicine
Anesthesia - Wikipedia
General anesthesia: Side effects, risks, and stages - Medical News Today
Anesthesia: MedlinePlus