Biagi, P., Abate, L., Bocchini, S., Verdiani, V., & Nozzoli, C. (2013). Prevalence, feature and treatment in a cohort of patients hospitalized for heart failure with preserved systolic function: data from the PRESYF-HF Toscana study. Italian Journal of Medicine, 3(3), 154–162. https://doi.org/10.4081/itjm.2009.154