pece_annotation_1473572067
Sara_NesheiwatMany studies used as references for this article have to do with the biosocial aspects of diseases. Many of the articles trace the spread of disease in different populations and analyze the population's demographics. Health care utilization and social aspects are all themes that are seen in most of the references in this study. There are also many epidemiological studies. The dates of studies date back as early as the 80s and as recent as the year the article was written in 2006. This shows an extensive and thorough amount of research. The articles are also taken from reputable sources and journals and written by experts as well, showing a great deal of care and effort gone into research aspects of this article.