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The use of an herbal formula by hospital care workers during the severe acute respiratory syndrome epidemic in Hong Kong to prevent severe acute respiratory syndrome transmission, relieve influenza-related symptoms, and improve quality of life: a prospective cohort study.
Lau JT, Leung PC, Wong EL, Fong C, Cheng KF, Zhang SC, Lam CW, Wong V, Choy KM, Ko WM. Lau JT, et al. Among authors: wong v, wong el. J Altern Complement Med. 2005 Feb;11(1):49-55. doi: 10.1089/acm.2005.11.49. J Altern Complement Med. 2005. PMID: 15750363 Clinical Trial.
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