Effects of different angular resolutions on the derived sizes and masses of bound sources in the star-forming regions NGC 6334 (top) and Aquila (bottom). We show the source size function (left), the source mass function (middle), and the cumulative mass function (right). The dashed curves in the left panels are the lognormal fits to the source size distributions and the vertical lines indicate the median values for each distribution. The dashed lines in the right panels are the fits to the cumulative SMFs within the range 5− 50%. For NGC 6334 (resp. Aquila), these intervals correspond to 14–107 M_⊙ (resp. 1–4) at 18′′, 54–418 M_⊙ (resp. 2–11) at 36′′, and 323-1870 M_⊙ (resp. 4–20) at 72′′.