When to include clinical study reports and regulatory documents in systematic reviews
Tom Jefferson, Peter Doshi, Isabelle Boutron, Su Golder, Carl Heneghan, Alex Hodkinson, Mark Jones, Carol Lefebvre, Lesley A Stewart
BMJ Evidence-Based Medicine Dec 2018, 23 (6) 210-217; DOI: 10.1136/bmjebm-2018-110963