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 |
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Authors: | Lau Joseph T F Leung P C Wong E L Y Fong C Cheng K F Zhang S C Lam C W K Wong V Choy K M Ko W M |
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Affiliation: | Centre for Epidemiology & Biostatistics, The Chinese University of Hong Kong, Hong Kong. jlau@cuhk.edu.hk |
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