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Characteristics Edit. A systematic review is a summary of research that uses explicit methods to perform a thorough literature search and critical appraisal of individual studies to identify the valid and applicable evidence. systematic review is a literature review focused on a single question that tries to identify, appraise, select and synthesize all high quality research evidence relevant to that question. Systematic reviews of high-quality randomized controlled trials are crucial to evidence-based medicine.
A comparison of phylogenetic and phenetic concepts. Biological systematics is the study of the diversification of living forms, both past and present, and the relationships among living things through time.Relationships are visualized as evolutionary trees (synonyms: cladograms, phylogenetic trees, phylogenies).he term systematics is sometimes used synonymously with  taxonomy , and may be confused with  scientific classification . Webster's 9th New Collegiate Dictionary of 1987 treats classification, taxonomy, and systematics as synonymous.