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cdong cdong
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6 years ago
All drugs that cross the blood-brain barrier
 
  A) change brain chemistry.
  B) have side effects.
  C) alter perception.
  D) do all of these.
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estiee3estiee3
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This calls for a celebration Person Raising Both Hands in Celebration
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I appreciate what you did here, answered it right Smiling Face with Open Mouth
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