Freeze the heart-failure trial list and the target-population source

Freeze the heart-failure trial list and the target-population source

Define trial eligibility, the cutoff date, and the single source used for the share of the heart-failure population aged 75 and over. Fix how age bands map between trials and that source. Deliverable: A protocol file, the eligible trial list with citations, and the target-population figures with their source and year.