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0.5cm ![Coexistence (binodal) curves for the one-component Baxter model. Both compressibility (PYC) and energy (PYE) equation of state as obtained from the Percus-Yevick approximation (see Ref [@Baxter68]) are reported and compared with $C_0$ and $C_1$ approximations from Ref. [@Fantoni05] and with Monte Carlo simulation (MC) from Ref. [@Miller03]. In the MC case the 