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Thach, Thuan-Quoc, Chit-Ming Wong, King-Pan Chan, Yuen-Kwan Chau, Yat-Nork Chung, Chun-Quan Ou, Lin Yang, i Anthony J. Hedley. "Daily Visibility and Mortality: Assessment of Health Benefits From Improved Visibility in Hong Kong." Environ Res 2010.

Thach, Thuan-Quoc, et al. "Daily Visibility and Mortality: Assessment of Health Benefits From Improved Visibility in Hong Kong." Environ Res 2010.