TY - JOUR AU - Classen, D; Avery, A; Bates, D TI - Evaluation and Certification of Computerized Provider Order Entry Systems JO - Journal of the American Medical Informatics Association. IS - S01 VL - 14 PY - 2007 DO - 10.1197/jamia.M2248 L3 - PubMed-ID: 17077453 SP - 48 EP - 55. ER -