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STUDY OBJECTIVE To determine the efficacy of decongestant prophylaxis in the prevention of symptoms of middle ear barotrauma (aerotitis media) during air travel. DESIGN Prospective, parallel, double-blind, randomized trial. SETTING Two commercial airports in Michigan. TYPE OF PARTICIPANTS Two hundred fifty volunteers with a history of recurrent ear(More)
We have used a specially modified xenon arc solar simulator to examine ultraviolet A (UVA) protection of a research sunscreen formulation. UVA doses were given to sunscreen-protected and unprotected skin with the use of irradiance values of 50 mW/cm2 and 100 mW/cm2. Erythemal responses were evaluated 5.2 +/- 0.9 hours later and again 24.4 +/- 1.8 hours(More)
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