Acronyms/Abbreviations/Initialisms must be defined The 1st time they appear in Just about every of 3 sections: the abstract; the leading text; the initial determine or table. When described for The 1st time, the acronym/abbreviation/initialism needs to be added in parentheses following the composed-out variety. State-of-the-art coronary heart failure; mechanical circulatory https://www.directivepublications.org/the-journal-of-clinical-medicine/