%0 Journal Article %T Respiratory symptoms due to active and passive smoking in junior secondary school students in Hong Kong %A Lam, TH %A Chung, SF %A Wong, CM %A Hedley, AJ %J International Journal of Epidemiology %V 27 %N 1 %P 41-48 %@ 0300-5771 %D 1998-02-01 %I Oxford University Press %~ DeepDyve