Khidir M, Siswanto S, Rasena HA, Iqbal RM, Sabirin RM, Wibowo RA, Rasyid SH. Comparison of Forced Expiratory Flow (FEF) 25-75% between Post-COVID-19 Patients with Different Severity at Universitas Gadjah Mada Academic Hospital. JR [Internet]. 2024 Jan. 30 [cited 2024 Aug. 11];10(1):23-9. Available from: https://e-journal.unair.ac.id/JR/article/view/48758