Pravdic N, Oluic-Vukovic V. Application of overlapping technique in selection of scientific journals for a particular discipline: methodological approach. Inf Proc Manag 1987;23(1):25-32. RESUMED: más eficiencia y difusión de la información actualizada [editorial]. RESUMED 1996;9(1):2. Institute for Scientific Information. Journal citation report. Philadelphia: Institute for Scientific Information, 1989. National Library of Medicine. List of journals indexed for online users. Bethesda: National Library of Medicine, 1994. Excerpta Medica. List of journals abstracted. Amsterdam: Elsevier's Science, 1988. Haynes RB, McKibon KA, Fitzgerald D, Guyatt GH, Walker CJ, Sackett DL. How to keep up with the medical literature: I. Why try to keep up and how to get started. Ann Intern Med 1986;105:149-53. Oxman AD, Guyatt GH. Guideliness for reading literature reviews. Can Med Asoc J 1988;138:697-703.