HYPERESTROGENISM AND HYPOTHYROIDISM REPORTS AT THE FEDERAL UNIVERSITY OF PARANÁ VETERINARY HOSPITAL (PERIOD 2000-2001) IN DOGS - KASECKER, G. G.; BRITO, H. F. V.; FERRARI, M. V.; PERRONI, M. A.; SINCERO, P. C.; TRANQUILIM, M. V.; WERNER, J.; WOUK, A. F. P. F. (Archives of Veterinary Science, 2001)