Pereira, I. S., Fonseca, D., Dias, M., Barroso, A. ., Pinto, P. and Machado, D. . (2021) “Possible IgG4-related respiratory disease (IgG4-RRD) - a rare presentation as a Pancoast tumour-like”, Brazilian Journal of Case Reports, 1(4), pp. 45–49. doi: 10.52600/2763-583X.bjcr.2021.1.4.45-49.