title: Literature review in biomedical research: useful search engines beyond PubMed.
authors.affiliation: Department of Family Medicine, CAPHRI School for Public Health and Primary Care, Maastricht University, The Netherlands. Electronic address: j.cals@hag.unimaas.nl.
authors.forename: Jochen W L
authors.initials: JW
authors.lastname: Cals
authors.affiliation: Department of Family Medicine, CAPHRI School for Public Health and Primary Care, Maastricht University, The Netherlands; Institute of General Practice, Medical Faculty, Heinrich-Heine-University Düsseldorf, Moorenstraße 5, 40225 Düsseldorf, Germany.
authors.forename: Daniel
authors.initials: D
authors.lastname: Kotz
mesh_terms: D006801:Humans; D011643:Publishing; D058028:Research Report / Q000592:standards*; D014956:Writing