TY  - RPRT
TI  - Variations in bronchial movement.
AU  - W S Holden
AU  - R Marshall
PY  - 1975
DO  - 10.1016/s0009-9260(75)80094-8
UR  - https://pubmed.ncbi.nlm.nih.gov/1201639/
ID  - 1201639
ER  -