V, V., S. K. Munjal, J. K. Saini, G. K. Singh, S. Modi, and A. Srivastava. “Synchronous Multiple Neuroendocrine Primary Lung Cancer With Endobronchial Extension in a Never Smoker - An Unusual Manifestation”. Chest Disease Reports, vol. 12, no. 1, Jan. 2024, doi:10.4081/cdr.12.12297.