Improve the integrity of oral care for nurses in the prevention of ventilator-associated pneumonia Shwu-Hwa Leu 1 *, Mei-Ju Su 1 , Li-Yao You 1 , Shu-Chun Chang 1 , Yueh-Chen Fu 1 , Hsia-Ling Wu 1 , Li-Chu Li 1 , Chin-Yu Chen 2 , Tzu-Ping Shih 2 , Wen-Chih Wu 3 , Cho-ching Sun 4 Background: