2.3. Information Sources and Search Strategy

JG José González-Serrano
CV Carmen Vallina
CG Carlos González-Serrano
AS Andrés Sánchez-Monescillo
JT Jesús Torres
GH Gonzalo Hernández
RL Rosa María López-Pintor
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A comprehensive search of the literature was conducted without date restriction until 19 April 2021 in the following databases: PubMed/MEDLINE, The Cochrane Library, Web of Science and Scopus. The search was performed by two independent researchers (J.G-S., C.V.). The search strategy used was a combination of following keywords adapted to each database (Table 1).

Search strategy employed in the present systematic review.

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