8KOBAYASHI H, HOSHINO M, OKAYA MA K, et al . Swallowing andCough reflexes after onsef of stroke[J]. Chest, 1994, 105(3): 1 623.
9AMER ICAN THORACIC SOCIETY. Medical Section of the American Lung Association Hospital - acquired pneumonia in adults:diagnosis, assessment of severity, initial antimicrobial therapy, and preventive strategies[J]. Am J Resp ir Crit CareMed, 1995, 153 (6) : 1711-1725.