Developing user-friendly ambulatory referrals: a quality improvement study in GI referral services at a large academic safety net hospital system. - Issac, Aaron Gerard; Du, Wendy; Youngblood, Alix; Prinssen, Wilhelmina; Carroll, Kelly; Geller, Robert; Patel, Palak; Adhyaru, Bhavin; Brown, Jason (BMC Health Services Research, 2025)