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Linhlinh Linhlinh
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6 years ago
The gold standard for judging clinical efficacy.
 
  a. Randomized clinical trials
  b. Collective case reports
  c. Single-case controlled studies
  d. Expert opinions
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sky2walkersky2walker
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6 years ago
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Linhlinh Author
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#2
6 years ago
tremendous help
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