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The morphological characteristics of the eight herbal materials found in Qingguo Wan. (A) Canarii Fructus (Qingguo), (B) Lonicerae Japonicae Flos (Jinyinhua), (C) Scutellariae Radix (Huangqin), (D) Menispermi Rhizoma (Beidougen), (E) Ophiopogonis Radix (Maidong), (F) Scrophulariae Radix (Xuanshen), (G) Paeoniae Radix Alba (Baishao), and (H) Platycodonis Radix (Jiegeng).
