1. Bronchial hyperresponsiveness in young students of southern China: relation to respiratory symptoms, diagnosed asthma, and risk factors. Issue 11 (November 1990) Authors: Zhong, N S; Chen, R C; O-yang, M; Wu, J Y; Fu, W X; Shi, L J Journal: Thorax Issue: Volume 45:Issue 11(1990) Page Start: 860 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗