甲状腺相关眼病是一种器官特异性自身免疫性疾病，确切的发病机制尚不清楚。
Thyroid associated ophthalmopathy is an organ special autoimmune disorder, of which the pathogenesis is still unclear.
慢性胰腺炎发病率不断攀高，但由于其确切的病因和发病机制尚不清楚，给治疗带来较大困难。
The incidence of chronic pancreatitis (CP) is increasing all over the world. However, it is rather difficult to treat it because its etiological factor and pathogenesis are still unclear.
它的起源、发病机理、传播机制和途径尚不清楚。
It has been not known the disease origins, pathogenesis, transmission mechanisms and mode.
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