方法：抽取本院口腔粘膜科和协作医院门诊的患者1 0 0例，随机分为两组。
Methods:100 patients with oral lichen planus in Division of Oral Medicine in Jining Stomatological Hospital and collaborative hospitals were randomly divided into 2 groups.
方法：抽取本院口腔粘膜科和协作医院门诊的患者1 0 0例，随机分为两组。
Methods:100 patients with oral lichen planus in Division of Oral Medicine in Jining Stomatological Hospital and collaborative hospitals were randomly divided into 2 groups.
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