title: A survey of respiratory disease among New York City postal and transit workers. IV. Racial differences in the FEV 1 .
mesh_terms: D000367:Age Factors; D044383:Black People; D006801:Humans; D009519:New York City; D009538:Nicotine / Q000009:adverse effects*; D044469:Racial Groups; D012044:Regression Analysis; D012140:Respiratory Tract Diseases / Q000453:epidemiology* / Q000209:etiology; D012907:Smoking / Q000150:complications*; D014797:Vital Capacity / Q000187:drug effects*; D044465:White People; D001741:Black or African American
chemical_list: D009538:Nicotine