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First Aid USMLE Step 1 Questions

First Aid for the USMLE Step 1 These questions compliment the book: First Aid for the USMLE Step 1. Read the book and do the questions for each chapter. Many users found this to be extremely helpful.
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Current Poll

Interatrial septual defects can form due to
A. failure of the bulbar ridges to form
B. failure of the septum secundum to form
C. failure of the foramen ovale and foramen secundum tobe properly positioned
D. all of the above
E. both B and C
Total Votes: 8
You may not vote on this poll.
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