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chillywilly4242 chillywilly4242
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6 years ago
The final phase of human clinical trials usually involves
 
  A) placebo controls.
  B) double-blind procedures.
  C) yoked controls.
  D) all of the above
  E) both A and B
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estiee3estiee3
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chillywilly4242 Author
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6 years ago
This calls for a celebration Person Raising Both Hands in Celebration
vanna2014
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Helped a lot
kiara23247843
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2 hours ago
I appreciate what you did here, answered it right Smiling Face with Open Mouth
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