Adamczewski, J. Z., Tedesco, S. C., Laarveld, B. and Flood, P. F. (1997) “Seasonal Patterns in Growth Hormone, Insulin and Insulin-like Growth Factor-1 in Female Muskoxen”, Rangifer, 17(3), pp. 131-134. doi: 10.7557/2.17.3.1364.