Uyttenhove, C., Coulie, P., & Van Snick, J. (1988). T-cell growth and differentiation induced by interleukin-HP1/Interleukin-IL-6, the murine hybridoma plasmacytoma growth-factor. The Journal of Experimental Medicine, 167(4), 1417-1427. https://doi.org/10.1084/jem.167.4.1417 (Original work published 1988)