Copyright: © 2022 by the authors. Licensee: Pirogov University.
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REVIEW

Levels of evidence and study designs

Borisova EO, Eremina OE, Gulbekova OV
About authors

Pirogov Russian National Research Medical University, Moscow, Russia

Correspondence should be addressed: Elena O. Borisova
ul. Ostrovityanova, 1, Moscow, 117997, Russia; ur.liam@avossiroboe

About paper

Author conclusions: Borisova EO — analysis of scientific literature, writing a text, preparation of a manuscript for publication; Eremina JuN — analysis of scientific literature, preparation of a manuscript for publication; Gulbekova OV — text editing.

Received: 2022-07-23 Accepted: 2022-08-21 Published online: 2022-11-30
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