β-Arrestin 1 and 2 and G protein-coupled receptor kinase 2 expression in pituitary adenomas: role in the regulation of response to somatostatin analogue treatment in patients with acromegaly - Gatto, F; Feelders, R; van der Pas, R; Kros, J M; Dogan, F; van Koetsveld, P M; van der Lelij, A J; Neggers, S J; Minuto, F; de Herder, W; Lamberts, S W; Ferone, D; Hofland, L J (Endocrinology, 2013)