Distribution of the core-size as a function of the respective non-thermal velocity dispersion from the DCN (3-2) spectra. The red triangles, blue plusses, and black crosses represent evolved, intermediate, and young protoclusters, respectively. The red, blue, and black squares are the average values (0.50 km s⁻¹, 0.63 km s⁻¹, and 0.63 km s⁻¹) for the collective evolved, intermediate and young values, respectively, where the error bars represent the standard deviations (0.22 km s⁻¹, 0.27 km s⁻¹, and 0.33 km s⁻¹, respectively). The black dashed line is the Larson relation (Larson 1981), and nearly all cores are above it. The black circle and error bar provide an estimate of the typical errors on the linewidth estimates. We find no correlation between the non-thermal velocity dispersion with core-size in the ranges of values sampled here.