output publications or other works EFFECTS OF TITANIUM DIOXIDE NANOPARTICLES ON T98G HUMAN GLIOBLASTOMA CELLS Conference Poster Environmental factors related with chronic kidney disease of unknown origin (CKDu) of Centro America: relationship of 28 element profile concentrations in drinking water with the prevalence in communities of Nicaragua Conference Poster Phenyl valerate esterase activity of human acetylcholinesterase Conference Poster