EFFECT OF DILTIAZEM ON INTERDIGESTIVE GALLBLADDER . VOLUME AND POSTPRANDIAL GALLBLADDER EMPTYING IN NORMAL SUBJECTS - ÖZÜTEMİZ, A. Ömer; TEKEŞİN, Oktay; İLTER, Tankut; YÖNETCİ, Nadir; MUSOĞLU, Ahmet (Turkish Journal of Gastroenterology, 1993)