title: Letter: Pollution in our operating-theatres.
mesh_terms: D000393:Air Pollutants; D000397:Air Pollution / Q000517:prevention & control; D000777:Anesthetics / Q000633:toxicity*; D000818:Animals; D004781:Environmental Exposure; D006801:Humans; D009873:Operating Rooms
chemical_list: D000393:Air Pollutants; D000777:Anesthetics