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Ghigo E, Arvat E, Gianotti L, Imbimbo BP, Lenaerts V, Deghenghi R, và đồng nghiệp (1994). “Growth hormone-releasing activity of hexarelin, a new synthetic hexapeptide, after intravenous, subcutaneous, intranasal, and oral administration in man”. J Clin Endocrinol Metab. 78 (3): 693–8. doi:10.1210/jcem.78.3.8126144. PMID8126144.
Moulin A, Ryan J, Martinez J, Fehrentz JA (2007). “Recent developments in ghrelin receptor ligands”. ChemMedChem. 2 (9): 1242–59. doi:10.1002/cmdc.200700015. PMID17520591.
Wang Y, Tomlinson B (2009). “Tesamorelin, a human growth hormone releasing factor analogue”. Expert Opin Investig Drugs. 18 (3): 303–10. doi:10.1517/13543780802707658. PMID19243281.
Loche S, Colao A, Cappa M, Bellone J, Aimaretti G, Farello G, và đồng nghiệp (1997). “The growth hormone response to hexarelin in children: reproducibility and effect of sex steroids”. J Clin Endocrinol Metab. 82 (3): 861–4. doi:10.1210/jcem.82.3.3795. PMID9062497.
Rahim A, O'Neill PA, Shalet SM (1998). “Growth hormone status during long-term hexarelin therapy”. J. Clin. Endocrinol. Metab. 83 (5): 1644–9. doi:10.1210/jcem.83.5.4812. PMID9589671.