Ochi, N., Takigawa, N., Yasugi, M., Harada, D., Yamane, H., Tanimoto, M., & Kiura, K. (2011). Spontaneous regression of pulmonary pure ground-glass opacity with progression of a solid component during a 40-month follow-up. Chest Disease Reports, 5(1), e14. https://doi.org/10.4081/cdr.5.168