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Table 2 Sources searched to retrieve grey literature

From: A protocol for an updated and expanded systematic mixed studies review of fear of cancer recurrence in families and caregivers of adults diagnosed with cancer

Type of grey literature Organising body and conference name Search strategy and outlet Years
Conference abstracts International Psycho-Oncology Society World Cancer Congress Review supplementary issues of Psycho-Oncology (journal) 2008 onwards
American Psychosocial Oncology Society Annual Conference Review supplementary issues of Psycho-Oncology (journal) 2009 onwards
British Psychosocial Oncology Society Annual Conference Review supplementary issues of Psycho-Oncology (journal) 1997, 2010, 2012–2017
Clinical Oncology Society of Australia Annual Scientific Meeting Review supplementary issues of Asia-Pacific Journal of Clinical Oncology (journal) 2005 onwards
Psycho-Social Oncology New Zealand conferences Review organisation website: http://ponz.org.nz/index.php?page=conferences 2008 onwards
Multinational Association of Supportive Care in Cancer Annual Meetings Review supplementary issues of Supportive Care in Cancer (journal) 2012 onwards
Clinical trials Australian New Zealand Clinical Trials Registry (ANZCTR) Keyword search on WHO search portal: http://apps.who.int/trialsearch/ 1997 onwards
Brazilian Clinical Trials Registry (ReBec)
Chinese Clinical Trial Register (ChiCTR)
Clinical Research Information Service (CRiS), Republic of Korea
ClinicalTrials.gov
Clinical Trials Registry - India (CTRI)
Cuban Public Registry of Clinical Trials (RPCEC)
EU Clinical Trials Register (EU-CTR)
German Clinical Trials Register (DRKS)
Iranian Registry of Clinical Trials (IRCT)
ISRCTN.org
Japan Primary Registries Network (JPRN)
Pan African Clinical Trial Registry (PACTR)
Peruvian Clinical Trials Registry (REPEC)
Sri Lanka Clinical Trials Registry (SLCTR)
Thai Clinical Trials Register (TCTR)
The Netherlands National Trial Register (NTR)
European grey literature e.g., technical or research reports, doctoral dissertations, some conference papers, some official publications Open Grey - System for Information on Grey Literature in Europe Keyword search on website: http://www.opengrey.eu/ 1997 onwards
All grey literature types Google search Keyword search on website, restricted to PDF documents or .org and/or.gov domains: https://www.google.com.au/ 1997 onwards
All grey literature types WorldCat Keyword, subject and title searches on advanced search page: http://www.worldcat.org/advancedsearch 1997 onwards
All types of grey literature in health services research and selected urban health topics The Grey Literature Report Keyword and MeSH term searching on website: http://greylit.org/ 1997–2016
All grey literature types The Grey Literature Network Service – GreyNet International Keyword search on website: http://greyguide.isti.cnr.it/ 1997 onwards