Sterile but contaminated epidural trays.
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D000767:Anesthesia, Epidural / Q000295:instrumentation*; D004209:Disposable Equipment; D004866:Equipment Contamination / Q000517:prevention & control; D004865:Equipment and Supplies, Hospital; D003368:Gossypium; D006197:Hair; D006801:Humans; D010209:Paper; D010969:Plastics; D011108:Polymers; D013242:Sterilization
D010969:Plastics; D011108:Polymers