I have an AAPC copyright 2011 CPMA Online Exam Review book, but is that the most current? And is it the same as the CPMA Study Guide? I want to make sure I'm studying with the most current/correct material. I know it's 2017 but sometimes the copyrights can be older when the information doesn't change but in the medical field 6 years is a big leap so I just wanted to verify before I press check out in my cart. Thanks!