1. A prospective randomized comparison of vertical banded gastroplasty (VBG), loop gastric bypass (GBY) and gastric banding (GB);Agren;International Journal of Obesity,1989
2. Randomized trial of diet and gastroplasty compared with diet alone in morbid obesity;Andersen;New England Journal of Medicine,1984
3. Long-term (5-year) results after either horizontal gastroplasty or very-low-calorie diet for morbid obesity;Andersen;International Journal of Obesity,1988
4. Horizontal or vertical banded gastroplasty after pretreatment with very-low-calorie formula diet: a randomized trial;Andersen;International Journal of Obesity,1987
5. Open versus laparoscopic vertical banded gastroplasty: a randomized controlled double blind trial;Davila-Cervantes;Obesity Surgery,2002