Janech, Michael G.; Fitzgibbon, Wayne R.; Chen, Ruihua; Nowak, Mark W.; Miller, Donald H.; Paul, Richard V.; Ploth, David W. (1 May 2003). "Molecular and functional characterization of a urea transporter from the kidney of the Atlantic stingray". American Journal of Physiology. Renal Physiology. 284 (5): F996–F1005. doi:10.1152/ajprenal.00174.2002. PMID12388386.
Janech, Michael G.; Fitzgibbon, Wayne R.; Chen, Ruihua; Nowak, Mark W.; Miller, Donald H.; Paul, Richard V.; Ploth, David W. (1 May 2003). "Molecular and functional characterization of a urea transporter from the kidney of the Atlantic stingray". American Journal of Physiology. Renal Physiology. 284 (5): F996–F1005. doi:10.1152/ajprenal.00174.2002. PMID12388386.