1. From the Departments of Pulmonary Circulation (Q.Z., R.Z., R.J., W.W., C.L., H.Q., H.L., J.H., P.Y., J.L., S.G., L.W.), Radiology (J.S., F.L.), and Pathology (H.X., L.Z.), Shanghai Pulmonary Hospital, Tongji University School of Medicine, No. 507 Zhengmin Rd, Shanghai 200433, China.