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They tend to hunt on the ground, where grays search for beech nuts and acorns.
Thirty-two papers were finally included in a thorough data extraction procedure, including those identified by a "gray literature search" utilizing the Google search engine and cross-reference searches.
After a detailed review of the full-text papers, 32 publications were included in a thorough data extraction procedure, including those identified by a "gray literature search" utilizing the Google search engine and cross-reference searches.
Seven databases (MEDLINE, CINAHL, EMBASE, CENTRAL, PAIS Index, Web of Science, and PubMed excluding MEDLINE) will be searched, and additional studies will be identified using several gray literature search strategies.
The reference list of the included studies was crosschecked and a partial gray literature search was undertaken.
To decrease the chance of publication bias influencing the results, TRF conducted a gray literature search to include studies that may not be included in bibliographic retrieval systems.
The status of publications such as gray literature searching was used as an inclusion criterion in four reviews (18.2%).
To assist with comprehensive searching for reviews, The Cochrane Collaboration provides detailed guidelines on searching for gray literature (including hand searching) through the Cochrane Handbook, available online at http://www.cochrane-handbook.org/.org/
So, what exactly puts Pinterst in the gray areas between search and social? 1. Self-Discovery & Personalization – Via "personalized recommendations that feel qualitatively different from other services," Pinterest is able to help users uncover their own tastes, one pin at a time.
