Hafiz Asad Saeed, Yasir M, Hammad M, Khokhar MU, Shahid MF, Haq U- ul-. Frequency and Etiology of Ventilator-Associated Pneumonia in COVID-19 Patients Presenting to Tertiary Care Hospital. Pak Armed Forces Med J [Internet]. 2023 Oct. 30 [cited 2024 Jul. 9];73(5):1443-7. Available from: https://pafmj.org/PAFMJ/article/view/9053