Evans AM, Petersen JW, Sekhon GS, DeMars R (May 1989). „Mapping of prolactin and tumor necrosis factor-beta genes on human chromosome 6p using lymphoblastoid cell deletion mutants”. Somat. Cell Mol. Genet.15 (3): 203-13. DOI:10.1007/BF01534871. PMID2567059.
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.
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Evans AM, Petersen JW, Sekhon GS, DeMars R (May 1989). „Mapping of prolactin and tumor necrosis factor-beta genes on human chromosome 6p using lymphoblastoid cell deletion mutants”. Somat. Cell Mol. Genet.15 (3): 203-13. DOI:10.1007/BF01534871. PMID2567059.
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.