|Epidemiology is the study of the circulation and patterns of health events, health characteristics and their origins or influences in clear populations. It is the cornerstone method of public health research, and helps inform policy decisions and evidence-based medicine by identifying risk factors for disease and targets for preventive medicine. Pharmacoepidemilogy is a part of epidemiology since it deals with the effects of drugs in large numbers of people or in a population.
The top open access journals are peer reviewed scholarly journals of Andrology Open Access. The top open access journals are freely available on the public internet domain, allowing any end users to read, download, copy, distribute, prink, search or link to the full texts of the articles. These provide high quality, meticulously reviewed and rapid publication, to cater the insistent need of scientific community. These journals are indexed with all their citations noted. The top open access journals are indexed in MEDLINE, PUBMED, SCOPUS, COPERNICUS, CAS, EBSCO and ISI.