Chronic respiratory disease among nonsmokers in Hagerstown, Maryland. 3. Social class and chronic respiratory disease

Environ Res. 1971 Aug;4(3):213-32. doi: 10.1016/0013-9351(71)90024-7.
No abstract available

MeSH terms

  • Adolescent
  • Adult
  • Chronic Disease
  • Health Surveys
  • Humans
  • Income
  • Male
  • Maryland
  • Morbidity
  • Occupations
  • Respiratory Function Tests
  • Respiratory Tract Diseases / epidemiology*
  • Respiratory Tract Diseases / mortality
  • Retrospective Studies
  • Smoking
  • Social Class*