Immunization Calculation Engine (ICE): an Open-Source, Multi-Jurisdictional, Standards-Based Immunization Decision Support System Leveraging the OpenCDS Platform. - Daryl Chertcoff; David Shields; Regina Austin; Samuel Nicolary; Michael Suralik; Noam Arzt; Ruth Gubernick; Jean Kirupaharan; Vikki Papadouka; Sheila Palevsky; Elzbieta Kopec-Schrader; Kristen Forney; et al. (AMIA, 2012)