1. Xu Y, Ouyang Y, Luo X, et al. (2008). The effect of demographic and social factors on return to work of injured workers with musculoskeletal disorders. Work 30(1):91-5.
2. Xu Y, Chan CC, Lo KH, Tang D. (2008). Prediction model for the return to work of workers with injuries in Hong Kong. Work 30(1):77-84.