机译:Influence of Rural Environmental Factors in Asthma
985990 Nebraska Med Ctr, Omaha, NE 68198 USA;
Rural; Agriculture; Asthma; Wheeze; UNITED-STATES; PULMONARY-FUNCTION; ALLERGIC RHINITIS; AIR-POLLUTION; DUST; EXPOSURE; HEALTH; FARM; PREVALENCE; ENDOTOXIN;