@article {papadopoulou2009assessment,
	title = {Assessment of quality of life using three activity questionnaires in heart failure patients after monthly, intermittent administration of levosimendan during a six-month period},
	journal = {Hellenic J Cardiol},
	volume = {50},
	number = {4},
	year = {2009},
	pages = {269{\textendash}274},
	author = {Papadopoulou, Evangelia F and Mavrogeni, Sophie I and Dritsas, Athanasios and Cokkinos, Dennis V}
}
