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.

对我院近年来难治肺结核、痰涂片阳随分(对照和治疗)。对照化疗方案相同,治疗加用卷曲霉素,观察疗效。