Key result
Editorial outlines format for letters to the editor with no clinical findings reported.
Design
Editorial commentary
Authors
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No clinical data presented; leaves open all questions for cardiology practice and research.
Key points are not available for this paper at this time.
Richard H. Greenspan (1969) reported an editorial. The provided text is an editorial description of a journal section for constructive comments and letters to the editor, containing no clinical data.
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