Widjanantie SC, Syam AF, Nusdwinuringtyas N, Susanto AD, Hidayat R, Kekalih A, Rachmawati MR, Maryastuti M, Damayanti T, Prathiwi P, Choi WA, Kang SW. Prediction Equations for Calculating Maximal Inspiratory Pressure from Spirometry and Thoracic Ultrasound After COVID-19 with Gastroesophageal Reflux Disease in Indonesian Adults: A Cross-sectional Study. Acta Med Indones [Internet]. 2024Oct.25 [cited 2025Nov.12];56(3):314. Available from: http://actamedindones.org/index.php/ijim/article/view/2675