Instruct: Classify a given review into positive or negative sentiment.
Query: GI boards review; poor resource

I'm a radiology resident using the Case Review series to study for the radiology boards. While the rest of the series is pretty good, this one is not. When I've had questions regarding the cases, I'd take them in to have my attendings clarify concepts and so far they have all said that whichever case I was reviewing with them was a bad example, with poor pictures and poor explanation of the concept involved. My fellow residents and attendings recommend the Mayo Clinic GI review.