Efficacy of Blood Urea Nitrogen/Creatinine Ratio in Distinguishing Upper from Lower Gastrointestinal Bleeding

Kang-Hee KIM; Seung-Geun PARK; Hee-Uk PARK.
Korean Journal of Gastrointestinal Endoscopy ; : 155-158, 2001.
Artículo en Ko | WPRIM | ID: wpr-117182