TY  - RPRT
TI  - Intrathoracic tracheal collapsibility--a cineradiographical study.
AU  - I Claesson
PY  - 1973
DO  - 10.1136/adc.48.2.162-e
UR  - https://pubmed.ncbi.nlm.nih.gov/4690520/
ID  - 4690520
ER  -