Retrospective medial care review in which an in-depth assessment of the quality and or nature of the use of selected health services or programs is made. Restudy of an MCE study assesses the effectiveness of corrective actions taken to correct deficiencies identified in the original study, but does not necessarily repeat or replicate the original study. Utilization review requirements under Medicare and Medicaid require utilization review committees in hospitals and skilled nursing facilities to have at least one such study in progress at all times. Such studies are also required by the FSRO program.