Table 2: Mean values for the equivalent line widths for the stars in common with Schultheis et al. (2003).
this work Schultheis et al. (2003)

Na I $5.10 \pm 0.74$ $5.21 \pm 0.67$

Ca I $2.52 \pm 1.29$ $2.06 \pm 0.74$

¹²CO(2, 0) $19.95 \pm 2.48$ $19.90 \pm 1.69$

**Table 2:** Mean values for the equivalent line widths for the stars in common with Schultheis et al. (2003).
	this work	Schultheis et al. (2003)
Na I	$5.10 \pm 0.74$	$5.21 \pm 0.67$
Ca I	$2.52 \pm 1.29$	$2.06 \pm 0.74$
¹²CO(2, 0)	$19.95 \pm 2.48$	$19.90 \pm 1.69$

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