Title Letter to the Editor Regarding: “The history of the evolution of the knowledge about the diagnosis and the pathogenetic aspects of heart failure: From the Egyptians to James Mackenzie” Type of Research Article Keywords - Abstract - Researchers Ahad Banagozar Mohammadi (First Researcher)، javad ghazi sha'rbaf (Second Researcher)، Somaiyeh Taheri Targhi (Third Researcher)، reza mohammadi nasab (Fourth Researcher)