8Park RHR, Allison MC, Lang J, et al. Randomised comparison of percutaneous endoscopic gastrostomy and nasogastric tube feeding in patients with persisting neurological dysphagla[J].BMJ 1992,304 : 1406-1409.
9Mullan H. Roubenoff RA. Roubenoff R Risk of pulmonary aspiration among patients receiving enteral nutrition support.[comment] [J]. Parenter Enteral Nutr. 1993 May 17(3) :2910-2919.
10Mitchell SL. Kiely DK. Lipsitz LA. The risk factors and impact on survival of feeding tube placement in nursing home residents with severe cognitive impairment[J]. [comment]. Archives of Internal Medicine. 157(3) : 327-332, 1997 Feb 10.
