1. Young JB, Abraham WT, Albert NM, et al. Relation of low hemoglobin and anemia to morbidity and mortality in patients hospitalized with heart failure (insight from the OPTIMIZE-HF registry). Am J Cardiol 2008;101:223–230.
2. Hamaguchi S, Tsuchihashi-Makaya M, Kinugawa S, et al. Anemia is an independent predictor of long-term adverse outcomes in patients hospitalized with heart failure in Japan. A report from the Japanese Cardiac Registry of Heart Failure in Cardiology (JCARE-CARD). Circ J 2009;73:1901–1908.
4. Ezekowitz JA, McAlister FA, Armstrong PW. Anemia is common in heart failure and is associated with poor outcomes: insights from a cohort of 12 065 patients with new-onset heart failure. Circulation 2003;107:223–225.
5. Kaiafa G, Kanellos I, Savopoulos C, Kakaletsis N, Giannakoulas G, Hatzitolios AI. Is anemia a new cardiovascular risk factor? Int J Cardiol 2015;186:117–124.
6. Stojcevski B, Celic V, Navarin S, et al. The use of discharge haemoglobin and NT-proBNP to improve short and longterm outcome prediction in patients with acute heart failure. Eur Heart J Acute Cardiovasc Care 2017;6:676–684.
7. Damluji AA, Macon C, Fox A, et al. The association between in-hospital hemoglobin changes, cardiovascular events, and mortality in acute decompensated heart failure: results from the ESCAPE trial. Int J Cardiol 2016;222:531–537.
8. van der Meer P, Postmus D, Ponikowski P, et al. The predictive value of short-term changes in hemoglobin concentration in patients presenting with acute decompensated heart failure. J Am Coll Cardiol 2013;61:1973–1981.
10. Ponikowski P, Voors AA, Anker SD, et al. 2016 ESC guidelines for the diagnosis and treatment of acute and chronic heart failure: the task force for the diagnosis and treatment of acute and chronic heart failure of the European Society of Cardiology (ESC) developed with the special contribution of the Heart Failure Association (HFA) of the ESC. Eur Heart J 2016;37:2129–2200.
11. Yancy CW, Jessup M, Bozkurt B, et al. 2013 ACCF/AHA guideline for the management of heart failure: a report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines. J Am Coll Cardiol 2013;62:e147–e239.
12. Nutritional anaemias. Report of a WHO scientific group. World Health Organ Tech Rep Ser 1968;405:5–37.
14. Lang RM, Badano LP, Mor-Avi V, et al. Recommendations for cardiac chamber quantification by echocardiography in adults: an update from the American Society of Echocardiography and the European Association of Cardiovascular Imaging. J Am Soc Echocardiogr 2015;28:1–39.
15. Ebner N, Jankowska EA, Ponikowski P, et al. The impact of iron deficiency and anaemia on exercise capacity and outcomes in patients with chronic heart failure. Results from the Studies Investigating Co-morbidities Aggravating Heart Failure. Int J Cardiol 2016;205:6–12.
16. von Haehling S, van Veldhuisen DJ, Roughton M, et al. Anaemia among patients with heart failure and preserved or reduced ejection fraction: results from the SENIORS study. Eur J Heart Fail 2011;13:656–663.
17. Groenveld HF, Januzzi JL, Damman K, et al. Anemia and mortality in heart failure patients a systematic review and meta-analysis. J Am Coll Cardiol 2008;52:818–827.
18. Yamauchi T, Sakata Y, Takada T, et al. Prognostic impact of anemia in patients with chronic heart failure: with special reference to clinical background: report from the CHART-2 study. Circ J 2015;79:1984–1993.
19. Amsterdam EA, Wenger NK, Brindis RG, et al. 2014 AHA/ACC guideline for the management of patients with non-ST-elevation acute coronary syndromes: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines. J Am Coll Cardiol 2014;64:e139–e228.
20. American College of Emergency Physicians; Society for Cardiovascular Angiography and Interventions, et al; O'Gara PT. 2013 ACCF/AHA guideline for the management of ST-elevation myocardial infarction: a report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines. J Am Coll Cardiol 2013;61:e78–e140.
21. Oh J, Kang SM, Kim IC, et al. The beneficial prognostic value of hemoconcentration is negatively affected by hyponatremia in acute decompensated heart failure: data from the Korean Heart Failure (KorHF) Registry. J Cardiol 2017;69:790–796.
22. Oh J, Kang SM, Hong N, et al. Hemoconcentration is a good prognostic predictor for clinical outcomes in acute heart failure: data from the Korean Heart Failure (KorHF) Registry. Int J Cardiol 2013;168:4739–4743.
24. Carson JL, Guyatt G, Heddle NM, et al. Clinical practice guidelines from the AABB: red blood cell transfusion thresholds and storage. JAMA 2016;316:2025–2035.