Improved sensitivity and specificity of pediatric hospital-acquired venous thromboembolism case identification by addition of radiographic and pharmacologic elements. Issue 154 (June 2017) - Dittmar, Michael; Smith, Natalie; Warren, Beth; Clark, Bryce; Wathen, Beth; Hammett, Ken; Reiter, Pam; Hilden, Joanne; Goldenberg, Neil; Branchford, Brian