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148.9fm shares

Perspectives on sexual and reproductive health published by the alan guttmacher institute

opinion

The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. Q1 green comprises the quarter of the journals with the highest values, Q2 yellow the second highest values, Q3 orange the third highest values and Q4 red the lowest values.

The SJR is a size-independent prestige indicator that ranks journals by their 'average prestige per article'. It is based on the idea that 'all citations are not created equal'.