A Chemical Test for Smoking ExposurePaul M. Densen, Ellen W. Jones, Bernard Davidow et al.|Archives of Environmental Health An International Journal|1967Cited by 120
A survey of respiratory disease among New York City postal and transit workersPaul M. Densen, Joseph Breuer, Hyman Bass et al.|Environmental Research|1967Cited by 31
A survey of respiratory disease among New York City postal and transit workersPaul M. Densen, Elizabeth Reed, Ellen W. Jones et al.|Environmental Research|1969Cited by 17
Respiratory Symptoms and Tests Among New York PostmenPaul M. Densen, Hyman Bass, Ellen W. Jones|Archives of Environmental Health An International Journal|1965Cited by 5
Organizational problems in the New York City survey for chronic respiratory disease.Paul M. Densen, Ellen W. Jones, Judith Breuer et al.|PubMed|1962Cited by 3