A nonlinear mathematical model of vertical transmission of HIV/AIDS is proposed to study the effects of drug resistance in the spread of the disease. The study
Cholera is one of the oldest and best understood endemic diseases. An actual bacterial enteric disease, it is characterized in its severe form by sudden onset,
The lack of population-level data on growth and development of children and adolescents in Ecuador, and the existence of previous data suggesting an alarming in
Purpose: To assess the prevalence of DSM-IV anorexia nervosa criteria, anorexia nervosa and subthreshold subgroups, and their incidence between the ages of 12 a
Context: There have been significant changes in the epidemiology of head and neck cancers (HNC) in the last three decades worldwide. Documenting these trends he
Aims: Establish profiles of young “at risk” of injuries, first, on an overall point of view and, secondly, for some types of injuries (sport, home, road traff