Critical appraisal of nonrandomized studies—A review of recommended and commonly used toolsJoan Quigley, David A. Scott, N. Halfpenny et al.|Journal of Evaluation in Clinical Practice|2018Cited by 143
Value and usability of unpublished data sources for systematic reviews and network meta-analysesN. Halfpenny, David A. Scott, Juliette C. Thompson et al.|BMJ Evidence-Based Medicine|2016Cited by 25
Importance and methods of searching for E-publications ahead of print in systematic reviewsJuliette C. Thompson, Neil Hawkins, Joan Quigley et al.|BMJ Evidence-Based Medicine|2016Cited by 14
Clinical Trials Registries For Systematic Reviews – An Alternative Source For Unpublished DataN. Halfpenny, David A. Scott, J.C. Thompson et al.|Value in Health|2015Cited by 7
Critical appraisal of non-randomized controlled trials – a review of recommended and commonly used toolsJoan Quigley, David A. Scott, J.C. Thompson et al.|Value in Health|2014Cited by 5