便通胶囊配合双歧杆菌治疗老年人气虚便秘的临床研究
편통효낭배합쌍기간균치료노년인기허편비적림상연구
A clinical Study of Biantong Capsule Combined with Bifidobacterium Tetragenous Viable Bacteria Tablets for Treatment of Elderly Qi-asthenia
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