"Try before you buy" - Download the FREE, which includes sample content. In-App purchase required to unlock all content. First Aid Q&A for the USMLE Step 1 is the only comprehensive Q&A review for the USMLE Step directly linked to high-yield facts from Dr. Le's First Aid for the USMLE Step 1, this essential study guide offers 1000 board-style questions and answers, easy-to-navigate, high yield explanations for correct and incorrect answers, and more than 350 accompanying images. KEY Features