Ferrer E, Cabrera Z, Rojas G, Lares M, Vera A, de Noya BA, Fernandez I, Romero HU, Harrison LJ, Parkhouse RM, Cortez MM. Evidence for high seroprevalence of Taenia solium cysticercosis in individuals from three rural communities in Venezuela. Trans R Soc Trop Med Hyg. 2003 Sep-Oct;97(5):522-6. (Corrección: Autor: Romero HU , corresponde a: Haideé Urdaneta Romero). Cited by: Google Sholar

Montes H, Salmen S, Dolfo W, Sotolongo A, Petrosino P, Donis J, Berrueta L. Evaluation of a liquid urease test (LUT) for detection of Helicobacter pylori. Acta Gastroenterol Latinoam. 2003;33(2):73-6. Citado por: Google Scholar

Medina AL., Cova JA., Vielma RA., Pujic P., Carlos MP. and Torres JV. Immunological and chemical analysis of proteins from Eisenia foetida earthworm. Food and Agricul Immunol 2003; 15:255-263. Citado por: Soogle Schoolar