Recommended practices for maintaining a sterile field.
D000985:Antisepsis / Q000379:methods; D001207:Asepsis / Q000379:methods*; D006801:Humans; D009873:Operating Rooms / Q000458:organization & administration; D016134:Organizational Policy; D013527:Perioperative Nursing / Q000458:organization & administration; D009626:Terminology as Topic; D014481:United States