title: Small particles with big effects.
authors.forename: William N
authors.initials: WN
authors.lastname: Rom
authors.forename: Jonathan M
authors.initials: JM
authors.lastname: Samet
mesh_terms: D000397:Air Pollution / Q000009:adverse effects*; D002318:Cardiovascular Diseases / Q000209:etiology; D004784:Environmental Monitoring / Q000592:standards*; D010316:Particle Size; D012120:Respiration Disorders / Q000209:etiology; D012307:Risk Factors; D014481:United States