Thull-Freedman J (March 2010). "Evaluation of chest pain in the pediatric patient". The Medical Clinics of North America. 94 (2): 327–47. doi:10.1016/j.mcna.2010.01.004. PMID20380959.
Thull-Freedman J (March 2010). "Evaluation of chest pain in the pediatric patient". The Medical Clinics of North America. 94 (2): 327–47. doi:10.1016/j.mcna.2010.01.004. PMID20380959.