Write a one-page paper describing the role of a health care GASTROENTEROLOGIST.

Write a one-page paper describing the role of a health care GASTROENTEROLOGIST. Please include in the paper the role, the required degree or certification needed, and how they collaborate with Registered Nurses in the health care system. MUST be in APA format
Please use and list one reference from a peer-reviewed journal less than 5 years old (APA format) with in-text citations