Objective To observe the effect of intra-pleural injection of PA-MSHA vaccine on hepatic pleural exudates.

目的 观察铜绿假单胞菌制剂胸腔注入治疗肝性胸水的疗效。

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In the year before the explosion, the mine safety and Health Administration (MSHA), a federal agency that monitors mine safety, cited the Sago mine 208 times for safety violations.

在爆炸发生的前一年，矿山安全和卫生署，一家负责监督矿山安全的联邦机构，引用了违反安全条例的Sago矿场多达208次。

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Massey has been using public forums to express its differences with the MSHA, its chief regulator.

FORBES: Massey Margins Pinched By Mine Safety, Stock Slippage Ahead

According to MSHA, 18 managers at Performance Coal and Massey Energy refused to testify in the investigation.

FORBES: Massey Energy Employee Guilty of Obstruction, But Where Was Management?

Hecla has received approval from MSHA to remove the loose material from the shaft, said Phillips S. Baker Jr.

FORBES: Hecla Officials Anticipate Clean-Up Of Mine Shaft Can Begin In Few Weeks