Intended for healthcare professionals

Letters Covid-19: weathering the storm

Keeping up with studies on covid-19: systematic search strategies and resources

BMJ 2020; 369 doi: (Published 23 April 2020) Cite this as: BMJ 2020;369:m1601
  1. Farhad Shokraneh, information scientist
  1. Cochrane Schizophrenia Group, Institute of Mental Health, University of Nottingham, Nottingham NG7 2TU, UK
  1. Farhad.Shokraneh{at}

The reason I write this letter is to take a small step towards helping readers with evidence based decision making by keeping them up to date with the rapidly growing number of covid-19 studies in PubMed and other resources.1 Many studies are not going to be visible in PubMed or Embase in the next few months because of indexing and content policy in bibliographic databases that avoids indexing preprint and unpublished studies, including registered clinical trials.


  • Competing interests: None declared.