Frequency of Toxocara canis Eggs in Public Parks of the Urban Area of Mexicali, B.C., Mexico

Luis Tinoco-Gracia, Alberto Barreras-Serrano, Gilberto Lopez-Valencia, Alma Rossana Tamayo-Sosa, Maryhelen Rivera-Henry and Esteban Quintana-Ramirez

Journal of Animal and Veterinary Advances 6 ( 3 ): 430 - 434 , 2007