Narula, N., Chopra, D., Rosenberg, M., & Moayyedi, P. (2018). A44 IS BLOOD UREA NITROGEN AN INDEPENDENT PREDICTOR OF POSITIVE ENDOSCOPIC FINDINGS IN PRESUMED UPPER GI BLEEDING? J Can Assoc Gastroenterol.
استشهاد بنمط شيكاغوNarula, N., D. Chopra, M. Rosenberg, و P. Moayyedi. "A44 IS BLOOD UREA NITROGEN AN INDEPENDENT PREDICTOR OF POSITIVE ENDOSCOPIC FINDINGS IN PRESUMED UPPER GI BLEEDING?" J Can Assoc Gastroenterol 2018.
MLA استشهادNarula, N., D. Chopra, M. Rosenberg, و P. Moayyedi. "A44 IS BLOOD UREA NITROGEN AN INDEPENDENT PREDICTOR OF POSITIVE ENDOSCOPIC FINDINGS IN PRESUMED UPPER GI BLEEDING?" J Can Assoc Gastroenterol 2018.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.