Tjan, A., Dwija Putra Ayusta, I. M., & Mahiswara, D. G. (2020). Semilunar Sign of Trans-Mediastinal Herniation of Giant Bullae with Tension Hydropneumothrax. Folia Medica Indonesiana, 56(4), 320–324. https://doi.org/10.20473/fmi.v56i4.24652