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5 million 12‑lead electrocardiogram waveform recordings and diagnostic reports, including automated analysis outputs and physician-reviewed diagnoses.
Data source and delivery: authorized data or project customization. Data from Grade A tertiary hospitals can be customized by project; the actual scope, authorization conditions, quality requirements, and delivery method are subject to compliance review and written agreement.
This information describes data governance, medical annotation, research, and model-development scenarios. It does not constitute a diagnosis, treatment, efficacy, risk-prediction, or medical-device performance claim.