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Benjamin EJ, Blaha MJ, Chiuve SE, Cushman M, Das SR, Deo R, et al. Heart disease and stroke statistics\u20132017 update: A report from the American Heart Association. <i>Circulation<\/i> 2017; 135: e146\u2013e603.","DOI":"10.1161\/CIR.0000000000000491"},{"key":"2","doi-asserted-by":"crossref","unstructured":"2. Ambrosy AP, Fonarow GC, Butler J, Chioncel O, Greene SJ, Vaduganathan M, et al. The global health and economic burden of hospitalizations for heart failure: Lessons learned from hospitalized heart failure registries. <i>J Am Coll Cardiol<\/i> 2014; 63: 1123\u20131133.","DOI":"10.1016\/j.jacc.2013.11.053"},{"key":"3","doi-asserted-by":"crossref","unstructured":"3. Shimokawa H, Miura M, Nochioka K, Sakata Y. Heart failure as a general pandemic in Asia. <i>Eur J Heart Fail<\/i> 2015; 17: 884\u2013892.","DOI":"10.1002\/ejhf.319"},{"key":"4","doi-asserted-by":"crossref","unstructured":"4. Heidenreich PA, Albert NM, Allen LA, Bluemke DA, Butler J, Fonarow GC, et al. 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Medication initiation burden required to comply with heart failure guideline recommendations and hospital quality measures. <i>Circulation<\/i> 2015; 132: 1347\u20131353.","DOI":"10.1161\/CIRCULATIONAHA.115.014281"},{"key":"9","doi-asserted-by":"crossref","unstructured":"9. Nieminen MS, Brutsaert D, Dickstein K, Drexler H, Follath F, Harjola VP, et al. EuroHeart Failure Survey II (EHFS II): A survey on hospitalized acute heart failure patients: Description of population. <i>Eur Heart J<\/i> 2006; 27: 2725\u20132736.","DOI":"10.1093\/eurheartj\/ehl193"},{"key":"10","doi-asserted-by":"crossref","unstructured":"10. Atherton JJ, Hayward CS, Wan Ahmad WA, Kwok B, Jorge J, Hernandez AF, et al. Patient characteristics from a regional multicenter database of acute decompensated heart failure in Asia Pacific (ADHERE International-Asia Pacific). <i>J Card Fail<\/i> 2012; 18: 82\u201388.","DOI":"10.1016\/j.cardfail.2011.09.003"},{"key":"11","doi-asserted-by":"crossref","unstructured":"11. Lee SE, Cho HJ, Lee H, Yang H, Choi JO, Jeon E, et al. A multicentre cohort study of acute heart failure syndromes in Korea: Rationale, design, and interim observations of the Korean Acute Heart Failure (KorAHF) registry. <i>Eur J Heart Fail<\/i> 2014; 16: 700\u2013708.","DOI":"10.1002\/ejhf.91"},{"key":"12","doi-asserted-by":"crossref","unstructured":"12. Sato N, Kajimoto K, Keida T, Mizuno M, Minami Y, Yumino D, et al. Clinical features and outcome in hospitalized heart failure in Japan (from the ATTEND Registry). <i>Circ J<\/i> 2013; 77: 944\u2013951.","DOI":"10.1253\/circj.CJ-13-0187"},{"key":"13","doi-asserted-by":"crossref","unstructured":"13. Okura Y, Ramadan MM, Ohno Y, Mitsuma W, Tanaka K, Ito M, et al. Impending epidemic: Future projection of heart failure in Japan to the year 2055. <i>Circ J<\/i> 2008; 72: 489\u2013491.","DOI":"10.1253\/circj.72.489"},{"key":"14","doi-asserted-by":"crossref","unstructured":"14. Hamaguchi S, Yokoshiki H, Kinugawa S, Tsuchihashi-Makaya M, Yokota T, Takeshita A, et al. Effects of atrial fibrillation on long-term outcomes in patients hospitalized for heart failure in Japan: A report from the Japanese Cardiac Registry of Heart Failure in Cardiology (JCARE-CARD). <i>Circ J<\/i> 2009; 73: 2084\u20132090.","DOI":"10.1253\/circj.CJ-09-0316"},{"key":"15","doi-asserted-by":"crossref","unstructured":"15. Yamamoto E, Kato T, Ozasa N, Yaku H, Inuzuka Y, Tamaki Y, et al. Kyoto Congestive Heart Failure (KCHF) study: Rationale and design. <i>ESC Heart Fail<\/i> 2017; 4: 216\u2013223.","DOI":"10.1002\/ehf2.12138"},{"key":"16","doi-asserted-by":"crossref","unstructured":"16. McKee PA, Castelli WP, McNamara PM, Kannel WB. The natural history of congestive heart failure: The Framingham study. <i>N Engl J Med<\/i> 1971; 285: 1441\u20131446.","DOI":"10.1056\/NEJM197112232852601"},{"key":"17","doi-asserted-by":"crossref","unstructured":"17. Senni M, Tribouilloy CM, Rodeheffer RJ, Jacobsen SJ, Evans JM, Bailey KR, et al. Congestive heart failure in the community: A study of all incident cases in Olmsted county, Minnesota, in 1991. <i>Circulation<\/i> 1998; 98: 2282\u20132289.","DOI":"10.1161\/01.CIR.98.21.2282"},{"key":"18","doi-asserted-by":"crossref","unstructured":"18. Butler J, Gheorghiade M, Kelkar A, Fonarow GC, Anker S, Greene SJ, et al. In-hospital worsening heart failure. <i>Eur J Heart Fail<\/i> 2015; 17: 1104\u20131113.","DOI":"10.1002\/ejhf.333"},{"key":"19","doi-asserted-by":"crossref","unstructured":"19. Filippatos G, Farmakis D, Parissis J. Renal dysfunction and heart failure: Things are seldom what they seem. <i>Eur Heart J<\/i> 2014; 35: 416\u2013418.","DOI":"10.1093\/eurheartj\/eht515"},{"key":"20","doi-asserted-by":"crossref","unstructured":"20. Vardeny O, Wu DH, Desai A, Rossignol P, Zannad F, Pitt B, et al. Influence of baseline and worsening renal function on efficacy of spironolactone in patients with severe heart failure: Insights from RALES (Randomized Aldactone Evaluation Study). <i>J Am Coll Cardiol<\/i> 2012; 60: 2082\u20132089.","DOI":"10.1016\/j.jacc.2012.07.048"},{"key":"21","doi-asserted-by":"crossref","unstructured":"21. Clark H, Krum H, Hopper I. Worsening renal function during renin-angiotensin-aldosterone system inhibitor initiation and long-term outcomes in patients with left ventricular systolic dysfunction. <i>Eur J Heart Fail<\/i> 2014; 16: 41\u201348.","DOI":"10.1002\/ejhf.13"},{"key":"22","doi-asserted-by":"crossref","unstructured":"22. Hsu JJ, Ziaeian B, Fonarow GC. Heart failure with mid-range (borderline) ejection fraction: Clinical implications and future directions. <i>JACC Heart Fail<\/i> 2017; 5: 763\u2013771.","DOI":"10.1016\/j.jchf.2017.06.013"},{"key":"23","doi-asserted-by":"crossref","unstructured":"23. Fonarow GC, Stough WG, Abraham WT, Albert NM, Gheorghiade M, Greenberg BH, et al. Characteristics, treatments, and outcomes of patients with preserved systolic function hospitalized for heart failure: A report from the OPTIMIZE-HF Registry. <i>J Am Coll Cardiol<\/i> 2007; 50: 768\u2013777.","DOI":"10.1016\/j.jacc.2007.04.064"},{"key":"24","doi-asserted-by":"crossref","unstructured":"24. Cheng RK, Cox M, Neely ML, Heidenreich PA, Bhatt DL, Eapen ZJ, et al. Outcomes in patients with heart failure with preserved, borderline, and reduced ejection fraction in the Medicare population. <i>Am Heart J<\/i> 2014; 168: 721\u2013730.","DOI":"10.1016\/j.ahj.2014.07.008"},{"key":"25","doi-asserted-by":"crossref","unstructured":"25. Kapoor JR, Kapoor R, Ju C, Heidenreich PA, Eapen ZJ, Hernandez AF, et al. Precipitating Clinical factors, heart failure characterization, and outcomes in patients hospitalized with heart failure with reduced, borderline, and preserved ejection fraction. <i>JACC Heart Fail<\/i> 2016; 4: 464\u2013472.","DOI":"10.1016\/j.jchf.2016.02.017"},{"key":"26","doi-asserted-by":"crossref","unstructured":"26. Farmakis D, Simitsis P, Bistola V, Triposkiadis F, Ikonomidis I, Katsanos S, et al. Acute heart failure with mid-range left ventricular ejection fraction: Clinical profile, in-hospital management, and short-term outcome. <i>Clin Res Cardiol<\/i> 2017; 106: 359\u2013368.","DOI":"10.1007\/s00392-016-1063-0"},{"key":"27","doi-asserted-by":"crossref","unstructured":"27. Tsuji K, Sakata Y, Nochioka K, Miura M, Yamauchi T, Onose T, et al. Characterization of heart failure patients with mid-range left ventricular ejection fraction: A report from the CHART-2 Study. <i>Eur J Heart Fail<\/i> 2017; 19: 1258\u20131269.","DOI":"10.1002\/ejhf.807"},{"key":"28","doi-asserted-by":"crossref","unstructured":"28. Tromp J, Khan MAF, Mentz RJ, O\u2019Connor CM, Metra M, Dittrich HC, et al. Biomarker profiles of acute heart failure patients with a mid-range ejection fraction. <i>JACC Heart Fail<\/i> 2017; 5: 507\u2013517.","DOI":"10.1016\/j.jchf.2017.04.007"},{"key":"29","doi-asserted-by":"crossref","unstructured":"29. Rastogi A, Novak E, Platts AE, Mann DL. Epidemiology, pathophysiology and clinical outcomes for heart failure patients with a mid-range ejection fraction. <i>Eur J Heart Fail<\/i> 2017; 19: 1597\u20131605.","DOI":"10.1002\/ejhf.879"},{"key":"30","doi-asserted-by":"crossref","unstructured":"30. Ikeda Y, Inomata T, Iida Y, Iwamoto-Ishida M, Nabeta T, Ishii S, et al. Time course of left ventricular reverse remodeling in response to pharmacotherapy: Clinical implication for heart failure prognosis in patients with idiopathic dilated cardiomyopathy. <i>Heart Vessels<\/i> 2016; 31: 545\u2013554.","DOI":"10.1007\/s00380-015-0648-2"},{"key":"31","doi-asserted-by":"crossref","unstructured":"31. Shah KS, Xu H, Matsouaka RA, Bhatt DL, Heidenreich PA, Hernandez AF, et al. 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