TY  - RPRT
TI  - Changes in measured spirometric indices. What is significant?
AU  - B E Pennock
AU  - R M Rogers
AU  - D R McCaffree
PY  - 1981
DO  - 10.1378/chest.80.1.97
UR  - https://pubmed.ncbi.nlm.nih.gov/7249720/
ID  - 7249720
ER  -