1. From the Department of Ultrasound, Shanghai Pulmonary Hospital, Tongji University School of Medicine, No. 507 Zhengmin Rd, Shanghai 200433, China (K.B., R.R.Z., Y.Z., M.J.S., H.W.C., Y.C., H.M.Z., C.H.T., J.Y., Y.W.); and Department of Pathology, Tongji Hospital, Tongji University School of Medicine, Shanghai, China (K.B.).