Madan, K., S. Radhika, S. Sharma, and N. Singh. “Large Pulmonary Hamartoma With “popcorn” Like Calcification”. Monaldi Archives for Chest Disease 75, no. 4 (December 10, 2015). Accessed May 3, 2024. https://www.monaldi-archives.org/macd/article/view/213.