Why choose First Aid Step 1 Express Video Series? Over 100 hours of high-yield videos explain each fact from 2011 and 2012 First Aid for the USMLE Step 1 More than 600 extra images and multimedia clips enhance First Aid instructor explanations. Exclusive 205 page color First Aid Workbook reinforces the highest yield facts when used with the video course. No talking heads – we keep you engaged with on-screen highlights and active learning questions. Study anytime, anywhere, and watch as many times as you want. 100% satisfaction and pass guarantee! See Terms and Conditions for details.. USMLERx products have already been battle-tested by thousands of users.