Adolescents with one regular source of care are much more likely to have received indicated preventive care and much less likely to have received emergency room care than those with no regular source of care or with more than one regular source.

Source: Ryan S, Riley A, Kang M, Starfield B. The effects of regular source of care and health need on medical care use among rural adolescents. Arch Pediatr Adolesc Med 2001; 155(2):184-190.