The effects of ursodeoxycholic acid alone and ursodeoxycholic acid plus low-dose acetylsalicylic acid on radiolucent gallstones - TUNCER, İlyas and HARMAN, Mustafa and MERCAN, Rıdvan and ÖZTÜRK, Mustafa and ARSLAN, İsmail and MERAL, Cezmi and Türkdoğan, M. Kürşat (Turkish Journal of Gastroenterology, 2003)