7Ponsky TI., Gauderer ML. Percutaneous endoscopic gastrostorey: a nonoperative technique for feeding gastrostomy [J]. Gasintest Endosc,1981, 27: 9-12.
8Stitua F, Acuna R, Herrera P. Percutaneous endoscopic gastrostomy. The technique of choice? [J]. J Pediatr Surg, 2003, 38: 1512--1515.
9Erdil A, Saka M, Ates Y, et al. Enteral nutrition via percutaneous endoscopic gastrostomy and nutritional status of patients: five year prospective study. J Gastroenterol Hepatol, 2005, 20:1002- 1007.
10Bloem BR, Lagaay AM, vail Beek W, et al. Prevalence of sub- jective dysphagia in community residents aged over 87 [J]. BMJ, 1990, 300(6726): 721-722.