将患者根据接受的CT检查的数量分成了两组。

Patients were divided into two populations by the medium number of CT performed.

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部分原因是降低了要求的实验室检查的数量，医疗咨询费用和给药费用。

This cost saving is due in part to a decrease in the number of laboratory tests requested and medical consultations obtained, as well as pharmaceuticals dispensed.

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在这份报告所涉及的各国，对怀孕妇女进行常规艾滋病检查的数量也日益增长。

The routine testing of pregnant women in the countries covered by the report is also expanding.

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