Allergy testing of multiple patients with a common syringe.
D004866:Equipment Contamination / Q000517:prevention & control*; D006801:Humans; D006967:Hypersensitivity / Q000175:diagnosis*; D007428:Intradermal Tests / Q000295:instrumentation*; D008722:Methods; D012882:Skin Tests / Q000295:instrumentation*; D013594:Syringes