Objective: to study the curative effect dose and the connected factors about the effect of rotating gamma system for treatment of brain metastatic tumor.

目的：探讨脑转移瘤伽玛刀治疗的疗效，处方剂量，影响疗效的相关因素。

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This time the agency asked for a new study to test the effect of a high dose of the drug on heart rhythm.

WSJ: FDA Approves Amylin's Bydureon Diabetes Drug After Delays

Although it takes three to four years for the shots to reach their full effect, after which the dose is tapered down and eventually stopped, people often experience relief within a couple of months after beginning allergy shots.

CNN: Finding relief as spring allergies rage on

The smaller the dose the larger the effect sort of thing.

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