00567naa a2200193 a 450000100080000000500110000800800410001910000250006024500960008526000090018165000160019065000140020665000150022065000110023565000150024665300110026170000140027277300870028618093662017-04-06       1991    bl ---       0--  u    #d1 aCOLLARES-PEREIRA, M.  aLeptospira infection in brucellosis seronegative bovines in Portugalban additional survey.  c1991  abrucellosis  ainfection  aLeptospira  aBovino  aInfecção  aBovine1 aROCHA, T.  tRevista Portuguesa de Ciencias Veterinariasgv.86, n.498, p.90-98, Abr./Jun. 1991.