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.
对我院近年来难性肺结核、痰
性病人随机分
两
(对照
和
)。对照
化
方案相同,
加用卷曲霉素,观察
效。