1. A randomized prospective trial comparing oral sodium phosphate with standard polyethylene glycol-based lavage solution (Golytely) in the preparation of patients for colonoscopy;Vanner;Am J Gastroenterol,1990
2. A comparison of the effectiveness and patient tolerance of oral sodium phosphate, castor oil, and standard electrolyte lavage for colonoscopy or sigmoidoscopy preparation;Kolts;Am J Gastroenterol,1993
3. Prospective, randomized trial comparing sodium phosphate solution with polyethylene glycol electrolyte lavage for colonoscopy preparation;Marshall;Gastrointest Endosc,1993
4. Prospective, randomized endoscopic-blinded trial comparing precolonoscopy bowel cleansing methods;Cohen;Dis Col Rectum,1994
5. Role of oral sodium phosphate and its effectiveness in large bowel preparation for out-patient colonoscopy;Chia;J Royal Col Surg Edin,1995