hazelnut wrote:
GMATNinja & GMATNinjaTwo, Could you help to explain why (D) is incorrect and (E) is correct? I could not understand the meaning of (medically indistinguishable). Does it mean the patients who did not benefit = the patients who did benefit?
We are told that 25% of patients do not benefit from the surgery. The author thus concludes that "the doctors who advised them to undergo this surgery, with its attendant risks and expense, were more interested in an opportunity to practice their skills
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