1.M ethods to divide our hospital's lunger of recent years who have difficul t and p ositive phlegm smear phthisic into two groups(check group and cure group) and pr ocess random analysis.

1.我院近年来难治肺结核、痰涂病人随分为两(和治疗)。化疗方案相同,治疗加用卷曲霉素,观察疗效。