- Influence of L-prolyl-L-leucyl-glycine amide on growth hormone secretion in normal and acromegalic subjects. Faglia, G., Paracchi, A., Ferrari, C., Beck-Peccoz, P., Ambrosi, B., Travaglini, P., Spada, A., Oliver, C. J. Clin. Endocrinol. Metab. (1976)