Vulliémoz NR, Xiao E, Xia-Zhang L, Germond M, Rivier J, Ferin M. Decrease in Luteinizing Hormone Pulse Frequency during a Five-Hour Peripheral Ghrelin Infusion in the Ovariectomized Rhesus Monkey. The Journal of Clinical Endocrinology & Metabolism. 2004 Nov;89(11):5718–23. doi: 10.1210/jc.2004-1244.