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Fig. 4.

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Iron-peak elements’ abundance ratios as a function of [Fe/H], for SMC and MW GCs and field stars (same symbols and data as in Fig. 3). MW field stars data are from Fulbright (2000), Stephens & Boesgaard (2002), Gratton et al. (2003), Reddy et al. (2003, 2006), Bensby et al. (2005), Adibekyan et al. (2012), Roederer & Lawler (2012) and Reggiani et al. (2017).

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