[1] China Japan Friendship Hosp, Natl Clin Res Ctr Resp Dis, Ctr Resp Med, Dept Pulm & Crit Care Med, Beijing, Peoples R China
[2] Chinese Acad Med Sci, Inst Resp Med, Natl Ctr Resp Med, Beijing, Peoples R China
[3] China Japan Friendship Hosp, Inst Clin Med Sci, Beijing, Peoples R China
[4] Peking Univ, Dept Neurosurg, China Japan Friendship Sch Clin Med, Beijing, Peoples R China
[5] China Japan Friendship Hosp, Dept Neurosurg, Beijing, Peoples R China
[6] China Japan Friendship Hosp, Dept Cardiovasc Surg, Beijing, Peoples R China
[7] Harbin Med Univ, Harbin, Heilongjiang, Peoples R China
[8] Tianjin Chest Hosp, Dept Resp & Crit Care Med, 261 Taierzhuang South Rd, Tianjin, Peoples R China
[9] Chinese Acad Med Sci & Peking Union Med Coll, Grad Sch Peking Union Med Coll, Beijing, Peoples R China
[10] Beijing Univ Chem Technol, Coll Life Sci & Technol, Beijing Key Lab Bioproc, Beijing, Peoples R China
[11] Capital Med Univ, Dept Resp Med, Beijing, Peoples R China
[12] Tsinghua Univ Peking Univ Joint Ctr Life Sci, Beijing, Peoples R China