PREVELANCE OF GALLSTONES DISEASE IN NORMAL POPULATION IN TURKEY - BEYLER, Ali Reşit; UZUNALİMOĞLU, Özden; GÖREN, Ali; ÖZDEN, Ali; SİPAHİ, Nihat; KESİM, Erol; DÖKMECİ, Abdulkadir; ÇOLAK, Turan; PALABIYIKOĞLU, Murah; ÇETİNKAYA, Hülya (Turkish Journal of Gastroenterology, 1993)