Lei You และ Xin Xu Chu. (2024) Impact of ambroxol combined with systematic nursing care on ventilatory function and blood gas parameters in elderly patients with severe respiratory failure. <i>Maejo International Journal of Science and Technology</i>, <i>18</i>(2), 193.Lei You และ Xin Xu Chu. "Impact of ambroxol combined with systematic nursing care on ventilatory function and blood gas parameters in elderly patients with severe respiratory failure". Maejo International Journal of Science and Technology 18 (2024):193.Lei You และ Xin Xu Chu. Impact of ambroxol combined with systematic nursing care on ventilatory function and blood gas parameters in elderly patients with severe respiratory failure. Maejo University:ม.ป.ท. 2024.