Science Citation Index Expanded, Journal of Citation Reports, Index Medicus/MEDLINE, Scopus, EMBASE/Excerpta Medica, IBECS
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Impact factor
The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years.
SRJ is a prestige metric based on the idea that not all citations are the same. SJR uses a similar algorithm as the Google page rank; it provides a quantitative and qualitative measure of the journal's impact.
C. Aguilera Tubet**,1, G. López Rasines*, A. Roca Edreira**, B. Martín García**, R. Hernández Rodríguez**, J.A Portillo Martín**, J.L. Gutiérrez Baños**, M.A. Correas Gómez**, J.I. Del Valle Schaan**, M.A Rado Velázquez**, F. Ruiz Izquierdo**, R. Ballestero Diego**
**Servicio de Urología y. Hospital Universitario Marqués de Valdecilla. Santander
*Servicio de Radiodiagnóstico. Hospital Universitario Marqués de Valdecilla. Santander