3Drudling M C. Re-examining the practice of normal saline instillation prior to suctioning[J]. Med Surg Nursing, 1997,6 (4): 209-212.
4Black Wood B. Normal saline instillation with endotracheal suetion2ing : Primum non noccre (first do no harm)[J]. Journal of Advanced Nursing ,1999 ,29(4) :9:?8-934.
5Young J I , Hee Seung Kim ,Jeong Hwan Park. Instillation of normalsaline before suctioning in patients with pneumonia[J]. Yonsei Medical Journal ,2002 ,43(5) :607-612.
