Kojecky, V.; Dolina, J.; Kianicka, B.; Misurec, M.; Varga, M.; Latta, J.; Vaculin, V. A Single or Split Dose Picosulphate/Magnesium Citrate Before Colonoscopy: Comparison Regarding Tolerance and Eficacy With Polyethylene Glycol. A Randomized Trial. JGLD 2014, 23, 141-146.