The pregnancy-induced increase in baseline circulating growth hormone in rats is not induced by ghrelin - El-Kasti, M M; Christian, H C; Huerta-Ocampo, I; Stolbrink, M; Gill, S; Houston, P A; Davies, J S; Chilcott, J; Hill, N; Matthews, D R; Carter, D A; Wells, T (J Neuroendocrinol, 2008)