Preoperative sterilization technique of the external ear canal.
D000890:Anti-Infective Agents; D004424:Ear Canal / Q000601:surgery*; D004431:Ear, External / Q000601:surgery*; D006582:Hexachlorophene; D006801:Humans; D011300:Preoperative Care; D013201:Stapes Surgery; D013242:Sterilization
D000890:Anti-Infective Agents; D006582:Hexachlorophene