TY  - SER
AU  - Benevides Filho,I.M.
AU  - Pinheiro,L.E.L.
AU  - Rodrigues,C.F.M.
AU  - Carvalho,C.
TI  - Presumptive polyspermy in embryos from superovulated cows
KW  - VACA
KW  - OVULACAO
KW  - EMBRIAO ANIMAL
ER  -