Queiroz, M. L. de; Simonsen, M.; Paschoalotti, M. A.; Chieffi, P. P. Frequency of Soil Contamination by Toxocara Canis Eggs in the South Region of São Paulo Municipality (SP, Brazil) in a 18 Month Period . Rev. Inst. Med. Trop. São Paulo 2006, 48 (6), 317-319.