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Effect of ferric carboxymaltose on Kansas City Cardiomyopathy Questionnaire overall summary score among pre-specified subgroups in the FAIR-HF study population. CHF, chronic heart failure; FCM, ferric carboxymaltose; GFR, glomerular filtration rate; HRQoL, health-related quality of life; KCCQ, Kansas City Cardiomyopathy Questionnaire; NYHA, New York Heart Association.
