TY - JOUR T1 - Novel mechanisms of growth hormone regulation: growth hormone-releasing peptides and ghrelin JO - Brazilian Journal of Medical and Biological Research A1 - Lengyel, A.-M.J. SN - 0100-879X UL - 10.1590/S0100-879X2006000800002 VL - 39 Y1 - 2006 PB - Brasil ER -