Different Risks of Mortality and Longitudinal Transition Trajectories in New Potential Subtypes of the Preserved Ratio Impaired Spirometry: Evidence From the English Longitudinal S... oleh Di He, Di He, Yilan Sun, Musong Gao, Qiong Wu, Qiong Wu, Zongxue Cheng, Zongxue Cheng, Jun Li, Jun Li, Yong Zhou, Kejing Ying, Yimin Zhu, Yimin Zhu