THE BLOOD UREA NITROGEN (BUN) TO SERUM CREATININE (CREAT) CONCENTRATION DOES NOT DISCRIMINATE UPPER (UGIH) FROM LOWER (LGIH) GASTROINTESTINAL HEMORRHAGE
N. Chalasani et al., THE BLOOD UREA NITROGEN (BUN) TO SERUM CREATININE (CREAT) CONCENTRATION DOES NOT DISCRIMINATE UPPER (UGIH) FROM LOWER (LGIH) GASTROINTESTINAL HEMORRHAGE, Gastroenterology, 110(4), 1996, pp. 9-9