1. A recent increase in asthma mortality in the northwestern United States;Paulozzi;Ann. Allergy,1986
2. Further investigation into the recent increase in asthma death rates: a review of 41 asthma deaths in Oregon in 1982;Barger;Ann. Allergy,1988
3. An increase in asthma deaths in California;Rachelefsky;J. Allergy Clin. Immunol.,1987
4. Asthma deaths in Massachusetts 1971-1987. Pediatr;Hannaway;Asthma Allergy Immunol.,1988
5. Asthma mortality in Maryland, 1979-85;Malveaux;J. Allergy Clin. Immunol.,1988