An abstract is a concise summary of a research paper which highlights briefly all the important information. The abstract should be written only after the entire paper has been completed. Many journals where original research, systematic reviews, and meta-analyses are submitted require structured abstracts. The abstract should include the background and state the study's purpose, methods (selection of study participants, settings, study design, interventions/treatments, measurements, analytical methods), results (outcomes, giving specific effect sizes and their statistical and clinical significance), ...
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