The novel somatostatin analog SOM230 is a potent inhibitor of hormone release by growth hormone- and prolactin-secreting pituitary adenomas in vitro - Hofland, L J; van der Hoek, J; van Koetsveld, P M; de Herder, W W; Waaijers, M; Sprij-Mooij, D; Bruns, C; Weckbecker, G; Feelders, R; van der Lely, A J; Beckers, A; Lamberts, S W (J Clin Endocrinol Metab, 2004)