A Randomized, Blinded, Prospective Trial to Compare the Safety and Efficacy of Three Bowel-Cleansing Solutions for Colonoscopy (HSG-01*) - Ell , C; Fischbach , W; Keller , R; Dehe , M; Mayer , G; Schneider , B; Albrecht , U; Schuette , W; null (Endoscopy, 2003)