Fig. 12
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[X/H] and [X/Fe] abundance ratios as a function of the Galactocentric distance (RG) for our 20 calibrating Cepheids compared with stars from literature: LII: Luck et al. (2011); LIII: Luck & Lambert (2011); LEM: Lemasle et al. (2013); YON: Yong et al. (2006). The error bars indicate our typical errors. Linear regressions fitted to the entire sample are also shown (solid lines)
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