[1] Harvard Med Sch, Massachusetts Gen Hosp, Div Pulm & Crit Care Med, Boston, MA 02215 USA
[2] Tulane Univ, Hlth Sci Ctr, Div Pulm Dis Crit Care & Environm Med, New Orleans, LA 70118 USA
[3] Harvard Med Sch, Beth Israel Deaconess Med Ctr, Div Thorac Surg & Intervent Pulmonol, Boston, MA 02215 USA
[4] Inova Healthcare, Intervent Pulmonol, Falls Church, VA USA
[5] Univ Connecticut, Intervent Pulmonol, Mansfield, CT USA
[6] NewYork Presbyterian Weill Cornell, Intervent Pulmonol, New York, NY USA