Determination of niclosamide residues in rainbow trout (Oncorhynchus mykiss) and channel catfish (Ictalurus punctatus) fillet tissue by high-performance liquid chromatography - Schreier, Theresa; Dawson, V.; Cho, Yirang; Spanjers, N.J.; Boogaard, M.A. (Journal of Agricultural and Food Chemistry, 2000)