1. The measurment of indigo blue and indirubin in the preparation of oral cavity ulcer membrane
口腔溃疡膜中靛蓝和靛玉红的含量测定
2. The prevalence rate of oral cavity ulcer is high up to20%, ranking the first in oral mucosal diseases and the third in oral diseases, only after caries and periodontal diseases.
而口腔溃疡的患病率高达20%左右，居口腔黏膜病的首位，在口腔疾病中仅次于龋病和牙周疾病，位居第三。
3. The prevalence rate of oral cavity ulcer is high up to20 %, ranking the first in oral mucosal diseases and the third in oral diseases, only after caries and periodontal diseases.
而口腔溃疡的患病率高达20%左右，居口腔黏膜病的首位，在口腔疾病中仅次于龋病和牙周疾病，位居第三。