A low dose of ghrelin stimulates growth hormone (GH) release synergistically with GH-releasing hormone in humans. - Hataya,Y.; Akamizu,T.; Takaya,K.; Kanamoto,N.; Ariyasu,H.; Saijo,M.; Moriyama,K.; Shimatsu,A.; Kojima,M.; Kangawa,K.; Nakao,K. (J Clin Endocrinol Metab, 2001)