Back to Topic Deep Dives page Maternal Health Surveillance Learn more about the importance of maternal mortality review committees and how they are supported by the CDC. Maternal MortalityReview Committees(MMRCs) Learn more about the Pregnancy Risk Assessment Monitoring System and how it is used to identify high-risk patients. Pregnancy RiskAssessmentMonitoringSystem (PRAMS) Learn more about the Pregnancy Mortality Surveillance System and how it is used to understand the national causes of pregnancy-related death. Pregnancy MortalitySurveillanceSystem (PMSS) Learn more about NVSS and how its data compares to MMRC and PMSS data National VitalStatisticsSystem (NVSS) Back to Topic Deep Dives page