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Fig. 3.
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CMDs of Pismis 5, Pismis 5A, Pismis 5B, QZ 1, Alessi 43, Collinder 197, BH 56, and NGC 2546. The solid lines are the isochrones from PARSEC and the corresponding parameters are marked in the figure. The dashed lines are the curve of equal-mass binaries.
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