Maximal secretory capacity of somatotrope cells in obesity: comparison with GH deficiency - Maccario, M; Valetto, M R; Savio, P; Aimaretti, G; Baffoni, C; Procopio, M; Grottoli, S; Oleandri, S E; Arvat, E; Ghigo, E (Int J Obes Relat Metab Disord, 1997)