First we need to understand why doctors order too many tests.

首先，我们需要理解为何医生们要求病人做那么多检查。

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Zhang, however, says there are other reasons why doctors order exhaustive tests.

但张翡提出其他理由来解释为何医生要求病人去做详尽的检查。

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Doctors order duplicative or unnecessary tests.

医生要求做的检查要么重复，要么没必要。

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Today many doctors order pain medicines for dying patients to be given before suffering takes hold.

VOA: special.2009.02.10

Concussions can be mild, but doctors may order a CT scan to look for a more serious injury.

VOA: special.2009.10.28

Doctors treating migraine sufferers often order medicines from a group of drugs known as triptans.

VOA: special.2011.05.03

As it stands now, the insurance companies rule when the doctors order.

WHITEHOUSE: The Affordable Care Act & The Patient��s Bill of Rights

Doctors order excessive diagnostic tests, partially to avoid malpractice liability.

CNN: Commentary: US health costs out of control

Doctors order unnecessary tests just to protect themselves, he said.

NEWYORKER: The Cost Conundrum