短語詞組短語syndrome type differentiation 辨証分型Syndrome Elements Differentiation 証素辨証syndrome -differentiation by eight principles 八綱辨証Study on Syndrome Factor Differentiation 証素辨証研究鉤玄yin syndrome -differentiation of ulcer 瘡瘍辨隂癥Syndrome differentiation significance 辨証意義 返回 syndrome differentiation