In contrast,in 0 ragweed pollen in- sensitive subjects with seasonal asthmatic attacks,percentages of positive cases were .% (/ 0)and .(/ 0)respectively.
In contrast,in 0 ragweed pollen in- sensitive subjects with seasonal asthmatic attacks,percentages of positive cases were .% (/ 0)and .(/ 0)respectively.
而花粉皮试阴性组豚草茎叶浸出液皮试阳性率为 .%(/ 0),HRBT阳性率为.%(/ 0)。