1. A respiratory survey of cedar mill workers I. Prevalence of symptoms and pulmonary function abnormalities;Chan-Yeung;JOM,1978
2. Occupational asthma and rhinitis due to western red cedar (Thuja plicata) with special reference to bronchial reactivity;Gandevia;Br J Ind Med,1970
3. Bronchial reaction to western red cedar (Thuja plicata);Chan-Yeung;Can Med Assoc J,1971
4. Occuational asthma and rhinitis due to western red cedar (Thuja plicata);Chan-Yeung;Am Rev Respir Dis,1973
5. Maximum expiratory flow and airway resistance during bronchoconstriction in patients with asthma due to western red cedar (Thuja plicata);Chan-Yeung;Am Rev Respir Dis,1973