A Case-Control Study on the Effect of Nonsteroidal Antiinflammatory Drugs in Upper Gastrointestinal Bleeding

Bae Jong-Myon (Department of Preventive Medicine, Cheju National University College of Medicine) ;
Lee Sang-Woo (Department of Internal Medicine, Korea University College of Medicine) ;
Kim Hak-Yang (Department of Internal Medicine, Kangdong Sacred Heart Hospital, Hallym University College of Medicine) ;
Park Soo-Heon (Department of Internal Medicine, St. Mary's Hospital, The Catholic University of Korea) ;
Hahm Ki-Baik (Department of Gastroenterology, Ajou University College of Medicine) ;
Jung Hyun-Chae (Department of Internal Medicine, Seoul National University College of Medicine) ;
Kim Jin-Ho (Department of Internal Medicine, Asan Medical Center, Ulsan University College of Medicine)