TY - SER AU - Araújo,A.A.de AU - Brasil,A.F. AU - Moura,A.A.A.N. AU - Lima,A.C.B.de TI - Fetal mummification in a cow with twin gestation and retention of the fetuses in the vagina: a case report KW - VACA LEITEIRA KW - GESTAÇÃO KW - FETO KW - VAGINA KW - DISTURBIO ANIMAL ER -