<p>This topic of eSource came to my mind from my experience in Clinical Research/ Pharmaceutical Research while conducting clinical trials at different sites. Whenever a site conducting trials then this site will be in need for a data documentation system to document and store the data that is being created and establishing from the clinical trials that are being conducted. This data documentation system is called Source. However, the Source could be electronic Source as in eSource or not electronic as in Paper Source. I have used both the eSource and the Paper Source. This Symposium presentation will show the advantages of the eSource in the Clinical Research.</p>