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Rather than a textbook this volume is a personal report of a lifetime experience in clinical cardiology. The author is obviously well informed of past and current literature, but names of other students and their opinions are deliberately omitted. While something is lost by this method of presentation, the author has been able to save space and gain in readability and authority.
Evans properly emphasizes the "clinical approach" in preference to "extravagant" unnecessary investigation. There is no methodological opposition between clinical science, which gathers information suitable for generalization, and clinical practice, which administers to the individual patient. Yet we should not confuse aims with technical adequacy: it is indeed misleading to say that "a close estimate" of the cardiac output or the "precise shape of each of the heart's chambers" can be obtained without using more elaborate procedures than physicial examination and simple "accessory" aids.
Unfortunately, the author's controversial opinions
Calabresi M. Diseases of the Heart and Arteries. JAMA. 1965;193(8):690. doi:10.1001/jama.1965.03090080052026