Díaz, L. F. and Xavier, A. (1977) “Isolated lung nodule.: Importance of extemporaneous biopsy”, Cirugía del Uruguay, 47(3), pp. 244–245. Available at: https://replica-revista.scu.org.uy/index.php/cir_urug/article/view/2882 (Accessed: 24 May 2026).