Calculation based on average number of citations in Last two years till 2011 December.
Indexing and Abstracting
Elsevier, CAS, EMBASE, DOAJ, Crossref, Index Copernicus, Worldcat, HINARI, Google Scholar, Open J-Gate, ScopeMed, Science Central, EBSCO, Proquest, New Jour, Scirus, Scivee, Proquest, Academic resources, Citeseer, OAIster, Library Intelligencer, University of Nevado, University of Tsukuba Library,York University, Journalseek,