Each group of medicine stochastic use in the outpatient service spring the catarrh conjunctivitis patient, and enjoins patient one week later the subsequent visit.
将每组药物随机使用于门诊春季卡他性结膜炎患者，并嘱患者一周后复诊。
2
Objective To observe the clinical effect of BCG-PSN on conjunctivitis in spring and on serum levels of T cell subsets and of cytokines.