Episodic air pollution in metropolitan Boston. A trial epidemiological study.
D000328:Adult; D000367:Age Factors; D000368:Aged; D000397:Air Pollution; D001249:Asthma / Q000453:epidemiology; D001900:Boston; D001991:Bronchitis / Q000453:epidemiology; D004630:Emergencies; D004781:Environmental Exposure; D005260:Female; D005313:Fetal Death / Q000453:epidemiology; D006331:Heart Diseases / Q000401:mortality; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D009026:Mortality; D009735:Nursing Homes; D011247:Pregnancy; D012140:Respiratory Tract Diseases / Q000453:epidemiology* / Q000401:mortality; D012189:Retrospective Studies; D012621:Seasons; D012737:Sex Factors