Human regulatory T-cell development is dictated by Interleukin-2 and -15 expressed in a non-overlapping pattern in the thymus - Caramalho, I.; Nunes-Silva, V.; Pires, A. R.; Mota, C.; Pinto, A. I.; Nunes-Cabaço, H.; Foxall, R. B.; Sousa, A. E. (2014)