Kressin, Nancy R.; Nunn, Martha E.; Singh, Harpreet; Orner, Michelle B.; Pbert, Lori; Hayes, Catherine; Culler, Corinna; Glicken, Stephan R.; Palfrey, Sean; Geltman, Paul L.; Cadoret, Cynthia; Henshaw, Michelle M.
Medical Care. 47(11):1121-1128, November 2009.
doi: 10.1097/MLR.0b013e3181b58867