TY  - RPRT
TI  - Epidemiologic methods for the study of occupational asthma. Current problems and solutions.
AU  - M R Cullen
PY  - 1996
DO  - 10.1378/chest.109.3_supplement.51s
UR  - https://pubmed.ncbi.nlm.nih.gov/8598154/
ID  - 8598154
ER  -