Serological and biochemical follow-up in cattle naturally infected with Fasciola hepatica, and comparison with a climate model for predicting risks of fasciolosis., Bossaert, K, Lonneux J F., Godeau J M., Peeters Johan, and Losson B , Vet Res, 1999 Nov-Dec, Volume 30, Issue 6, p.615-28, (1999)