The Johns Hopkins Heartburn Center Registry
Johns Hopkins University
Johns Hopkins University
Medical College of Wisconsin
Second Affiliated Hospital, School of Medicine, Zhejiang University
First Affiliated Hospital of Chengdu Medical College
Shandong Cancer Hospital and Institute
Rutgers, The State University of New Jersey
OHSU Knight Cancer Institute
University of Rochester
Providence Health & Services
RenJi Hospital
RenJi Hospital
Main Line Health
G. Hatzikosta General Hospital