Toxic : danger of serious damage to health by prolonged exposure through inh .

有毒的：经吸入和与皮肤长期接触有严重损害健康的危险。

Harmful : danger of serious damage to health by prolonged exposure through inh .

有害的：经吸入和与皮肤长期接触有严重损害健康的危险。

Methods : fifty three patients with tuberculous pleural effusion were treated with regular anti tb therapy plus intrapleural injection of rfp while another 54 patients as control group were given intrapleural injection of inh .

方法：在常规治疗基础上，采用利福平胸腔注入治疗结核性胸腔积液53例，同时与采用异烟肼胸腔注入治疗的对照组54例进行对照。