1. Office Visits for Diseases of the Respiratory System;U.S. Department of Health, Education, and Welfare;Vital and Health Statistics,1979
2. Asthma Statistics;National Heart, Lung, and Blood Institute Data Fact SHEET,1989
3. Prevalence of asthma and health service utilization of asthmatic children in an inner city;Mak;J Allergy Clin Immunol,1982
4. A comparison of absentee rates of elementary schoolchildren with asthma and nonasthmatic schoolmates;Parcel;Pediatrics,1979
5. A program to help asthmatic students reach their potential;Ewquibel;Publ Health Rep,1984