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General and Comparative Endocrinology|January 22, 2003
Comparative urinary androstanes in the great apesL R Hagey, N M CzekalaPrimates; Journal of Primatology|December 15, 2018
Monitoring hormones in urine and feces of captive bonobos (Pan paniscus)M H Jurke, L R Hagey, S Jurke, et al.American Journal of Primatology|October 17, 1998
Monitoring pregnancy in twinning pygmy loris (Nycticebus pygmaeus) using fecal estrogen metabolitesM H Jurke, N M Czekala, S Jurke, et al.American Journal of Primatology|January 1, 1997
A preliminary investigation of urinary testosterone and cortisol levels in wild male mountain gorillasM M Robbins, N M CzekalaBiology of Reproduction|May 1, 1991
Zebra chorionic gonadotropin: partial purification and characterizationJ R McFarlane, N M Czekala, H PapkoffJournal of Reproduction and Fertility|January 1, 1990
Reproductive cycle of the steppe polecat (Mustela eversmanni)R A Mead, S Neirinckx, N M CzekalaCellular and Molecular Life Sciences : CMLS|May 20, 2008
Bile acids: chemistry, pathochemistry, biology, pathobiology, and therapeuticsA F Hofmann, L R HageyThe American Journal of Physiology|December 1, 1991
Hepatic and ileal transport and effect on biliary secretion of norursocholic acid and its conjugates in ratsJ Lillienau, L R Hagey, B BorgströmAmerican Journal of Physical Anthropology|May 26, 1999
Reproductive hormone profiles in captive male orangutans: implications for understanding developmental arrestA N Maggioncalda, R M Sapolsky, N M CzekalaAmerican Journal of Primatology|December 10, 1999
Growth hormone and thyroid stimulating hormone concentrations in captive male orangutans: implications for understanding developmental arrestA N Maggioncalda, N M Czekala, R M SapolskyPageof 7