Gillette, Chris, Ceila E. Loughlin, Betsy Lynn Sleath, Dennis M. Williams, and Stephanie D. Davis. 2011. “Quality of Pulmonary Function Testing in 3 Large Primary Care Pediatric Clinics in Rural North Carolina.” North Carolina Medical Journal 72 (2): 105–10. https://doi.org/10.18043/ncm.72.2.105.