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.对我院近治性肺结核、痰涂片阳性病人随分为两(对照和治)。对照方案相同,治加用卷曲霉素,观察效。