Ucán-Marín, F., Arukwe, A., Mortensen, A., Gabrielsen, G.W., Fox, G.A. and Letcher, R.J. (2009) Recombinant Transthyretin Purification and Competitive Binding with Or-ganohalogen Compounds in Two Gull Species (Larus argentatus and Larus hyperboreus). Toxicological Sciences, 107, 440-450.