Walsh ST, Kossiakoff AA (2006). "Crystal structure and site 1 binding energetics of human placental lactogen". J. Mol. Biol.358 (3): 773–84. PMID16546209. doi:10.1016/j.jmb.2006.02.038.
Josimovich JB, Atwood BL, Goss DA (1963). "Luteotrophic, Immunologic and Electrophoretic Properties of Human Placental Lactogen.". Endocrinology (1963) Vol. 73, No. 4 410-42073: 410. doi:10.1210/endo-73-4-410.
Walsh ST, Kossiakoff AA (2006). "Crystal structure and site 1 binding energetics of human placental lactogen". J. Mol. Biol.358 (3): 773–84. PMID16546209. doi:10.1016/j.jmb.2006.02.038.
PDB 1Z7C; Walsh ST, Kossiakoff AA (May 2006). "Crystal structure and site 1 binding energetics of human placental lactogen". J. Mol. Biol. 358 (3): 773–84. doi:10.1016/j.jmb.2006.02.038. PMID 16546209