PT - JOURNAL ARTICLE AU - M Lippmann TI - Winter air pollution and respiratory function AID - 10.1136/oem.60.2.81 DP - 2003 Feb 01 TA - Occupational and Environmental Medicine PG - 81--81 VI - 60 IP - 2 4099 - http://oem.bmj.com/content/60/2/81.short 4100 - http://oem.bmj.com/content/60/2/81.full SO - Occup Environ Med2003 Feb 01; 60