Kulick R, Chaiseha Y, Kang S, Rozenboim I, El Halawani M (2005). “The relative importance of vasoactive intestinal peptide and peptide histidine isoleucine as physiological regulators of prolactin in the domestic turkey”. Gen Comp Endocrinol142 (3): 267-73. doi:10.1016/j.ygcen.2004.12.024. PMID15935152.
Kulick R, Chaiseha Y, Kang S, Rozenboim I, El Halawani M (2005). “The relative importance of vasoactive intestinal peptide and peptide histidine isoleucine as physiological regulators of prolactin in the domestic turkey”. Gen Comp Endocrinol142 (3): 267-73. doi:10.1016/j.ygcen.2004.12.024. PMID15935152.