Distribution of morphine in body fluids and tissues in fatal overdose

Two cases of fatal overdose with morphine are presented. Large amounts of the drug were involved in both cases, one by oral ingestion, the other by intravenous injection. Morphine concentrations in various body fluids and tissues are compared to those in the literature.     

Opening the Mexican political system: Public opinion and the elections of 1994 and 1997

Over the past decade, the proliferation of election surveys has worked to undergird the electoral system in Mexico and to make electoral fraud more difficult. In the presidential elections of 1994, significant controversies arose as to survey methodologies, but by the congressional elections of 1997 the fierce debates over methodologies had subsided. Substantively, the surveys confirm the accuracy of the vote count in 1998, allow profiles of voters to be constructed for the three most important parties and mark declines in the support of the once dominant Partido Revolucionario Institucional.