TY  - RPRT
TI  - Cricopharyngeal dysfunction in chronic obstructive pulmonary disease.
AU  - M Stein
AU  - A J Williams
AU  - F Grossman
AU  - A S Weinberg
AU  - L Zuckerbraun
PY  - 1990
DO  - 10.1378/chest.97.2.347
UR  - https://pubmed.ncbi.nlm.nih.gov/2298059/
ID  - 2298059
ER  -