SNIP measures contextual citation impact by weighting citations based on the total number of citations in a subject field.
SJR 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 a qualitative measure of the journal’s impact.
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The aim of SD, REVISTA MÉDICA INTERNACIONAL SOBRE EL SÍNDROME DE DOWN (INTERNATIONAL MEDICAL JOURNAL ON DOWN'S SYNDROME) is, on the one hand, to gather current knowledge on the medical aspects of Down's Syndrome, and to continuously review and update this, from the most promising advances in basic sciences, such as molecular biology and genetics, to daily clinical practice; and on the other hand, to look at those psychopedagogical aspects, that, due to their relationship with the medical field ,could be of practical interest for general and specialist paediatricians associated with Down's Syndrome. SD will consider publishing clinical or research articles associated with all branches of Down's Syndrome.