TY - RPRT TI - Sensitive subgroups and normal variation in pulmonary function response to air pollution episodes. AU - B Brunekreef AU - P L Kinney AU - J H Ware AU - D Dockery AU - F E Speizer AU - J D Spengler AU - B G Ferris PY - 1991 DO - 10.1289/ehp.90-1519500 UR - https://pubmed.ncbi.nlm.nih.gov/2050060/ ID - 2050060 ER -