PT - JOURNAL ARTICLE AU - R L Maynard TI - Smog Alert: Managing Urban Air Quality AID - 10.1136/oem.54.2.143-b DP - 1997 Feb 01 TA - Occupational and Environmental Medicine PG - 143--144 VI - 54 IP - 2 4099 - http://oem.bmj.com/content/54/2/143.3.short 4100 - http://oem.bmj.com/content/54/2/143.3.full SO - Occup Environ Med1997 Feb 01; 54