Sepp R, Mazzag B, Frigyesy R, Mihalyi K, et al. How to query administrative databases for heart failure epidemiological investigations? Rationale, design, and case definition criteria for the nation-wide HF-EPI-HUN Study. Eur J Heart Fail 2026 Jun 11:xuag189. doi: 10.1093.
PMID: 42275482