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.

我院近年来难治核、痰涂片阳病人随分为两(照和治)。照化方案相同,治加用卷曲霉素,观察效。