1. Freed GL, Dunham KM, Loveland-Cherry C, Martyn KK, Moote MJ. Nurse practitioners and physician assistants employed by general and subspecialty pediatricians. Pediatrics. 2011;128(4):665–72.
2. Freed GL, Dunham KM, Loveland-Cherry CJ, Martyn KK. Pediatric nurse practitioners in the United States: current distribution and recent trends in training. J Pediatr. 2010;157(4):589–93, 593.e581.
3. Freed GL, Dunham KM, Moote MJ, Lamarand KE. Pediatric physician assistants: distribution and scope of practice. Pediatrics. 2010;126(5):851–5.
4. DeNicola L, Kleid D, Brink L, et al. Use of pediatric physician extenders in pediatric and neonatal intensive care units. Crit Care Med. 1994;22(11):1856–64.
5. Mathur M, Rampersad A, Howard K, Goldman GM. Physician assistants as physician extenders in the pediatric intensive care unit setting-A 5-year experience. Pediatr Crit Care Med. 2005;6(1):14–9.