Objective:To evaluate the effect of BCG polyose nucleic acid (BCG-PSN) and the relationship with variation of T Lymph-cell Subpopulation in children with chronic diarrhea.

• 目的:研究斯奇康治疗慢性腹泻患儿的疗效及与T淋巴细胞亚群变化的关系。方法:对30例慢性腹泻患儿,用斯奇康注射液治疗6周,观察病情变化。