gastric bypass surgeries

There are the several types of gastric bypass surgeries. What are the success rates, and pros and cons of each type?. What types of patients should be chosen for these procedures? Please write a paper after searching this topic. Submission must contain at least 250 words and be formatted in APA 6th Edition. The submission must include two references and the student must use PROQUEST, PUBMED, or any of the SHARC online library resources for atleast one reference. Post references (APA format) to receive credit.