Data Base (active)- Ebsco MEDLINE with Full Text (Ebsco) CINAHL with Full Text (Ebsco) Health Business Full Text (Ebsco) Library, Information Science & Technology Abstracts (Ebsco) Dentistry & Oral Sciences Source (Ebsco) GreenFILE (human impact to the environment) (Ebsco- Journal citation Reports (JCR)- ISI Web of Sciences- Ovid Medline Scopus - Endnote Web- Sciverse- Biomedcentral- Iranmedex- Magiran