509. Tsui, T.K.N., Hung, C.Y.C., Nawata, M., Wilson, J.M. , Wright, P. A. and Wood, C.M. (2009) Ammonia transport in cultured gill epithelium of freshwater rainbow trout: the importance of Rhesus glycoproteins and the presence of an apical Na+/NH4+ exchange complex. J. Exp. Biol. 212 pp: 878-898. (PDF)