机构:
Univ So Calif, Keck Sch Med, Div Cardiovasc Med, Los Angeles, CA 90033 USAUniv So Calif, Keck Sch Med, Div Cardiovasc Med, Los Angeles, CA 90033 USA
机构:
Univ Ulsan, Coll Med, Div Pulm & Crit Care Med, Asan Med Ctr, Seoul, South KoreaCatholic Univ Korea, Div Pulm & Crit Care Med, Dept Internal Med, Incheon St Marys Hosp,Coll Med, Seoul, South Korea