Asthma costs.
Ross
R N
RN
Berman
B A
BA
D001249:Asthma / Q000191:economics* / Q000517:prevention & control; D002675:Child, Preschool; D003365:Costs and Cost Analysis; D004205:Cromolyn Sodium / Q000627:therapeutic use*; D006296:Health Services / Q000191:economics; D006801:Humans; D012189:Retrospective Studies
D004205:Cromolyn Sodium