TY  - RPRT
TI  - Central airway obstruction.
AU  - Armin Ernst
AU  - David Feller-Kopman
AU  - Heinrich D Becker
AU  - Atul C Mehta
PY  - 2004
DO  - 10.1164/rccm.200210-1181so
UR  - https://pubmed.ncbi.nlm.nih.gov/15187010/
ID  - 15187010
ER  -