TY  - RPRT
TI  - Tracheobronchial cytologic changes during the menstrual cycle.
AU  - J Chalon
AU  - D A Loew
AU  - L R Orkin
PY  - 1971
UR  - https://pubmed.ncbi.nlm.nih.gov/4107280/
ID  - 4107280
ER  -