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Fig. 2 | International Journal for Equity in Health

Fig. 2

From: The historical roots and seminal research on health equity: a referenced publication year spectroscopy (RPYS) analysis

Fig. 2

Referenced Publication Years Spectroscopy of Health Equity (1800–2018). Notes:Distribution of the cited references across the reference publication years 1800–2018: Whereas the blue line shows the distribution of the number of cited references across the publication years, and the orange line shows the absolute deviation of the number of cited references in one year from the median for the number of cited references in the two previous, the current and the two following years

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