question: How is asthma clinically classified ?
answer: according to the frequency of symptoms , forced expiratory volume in one second ( FEV1 ) , and peak expiratory flow rate
turker_answer: To clinically classify asthma , and depending on frequency of symptoms , ( FEV1 ) or forced expiatory volumes of one second and peak expiatory flow rate are evaluated .
rule-based: Asthma clinically classified is by according to the frequency of symptoms , forced expiratory volume in one second ( FEV1 ) , and peak expiratory flow rate .