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This is episode 1 of our new series called "First Aid Deep-Dive."

In each episode, we'll break down and go deep into a topic featured in the First Aid over the past several years—an indication that it is high-yield and commonly tested.

Today's topic is Ventilation-Perfusion mismatches. 

If you'd like to try the practice question, visit: https://www.usmle.io/p/podcast-question-1

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