Wang S, Sun C, Wang Y, Ma J. Clinical efficacy and nursing intervention of ceftazidime tazobactam sodium combined with levofloxacin in treating heart failure complicated with pulmonary infection in elderly patients. Int. J. Ind. Chem. 2023;13(1). Accessed May 16, 2026. https://oiccpress.com/ijic/article/view/4123