PeerJ Author 35 Points Contributions by role Preprint Author 35 Contributions by subject area Epidemiology Evidence Based Medicine Health Policy Science and Medical Education Statistics Douglas M Salzwedel PeerJ Author Summary Epidemiology Evidence Based Medicine Health Policy Science & Medical Education Statistics Past or current institution affiliations University of British Columbia PeerJ Contributions Preprints 1 August 28, 2018 - Version: 1 Protocol for the validation of four search strategies for retrieval of Clinical Practice Guidelines in MEDLINE, Embase and PubMed Carole A Lunny, Doug M Salzwedel, Tracy Liu, Cynthia Ramasubbu, Savannah Gerrish, Lorri Puil, Barbara Mintzes, James M Wright https://doi.org/10.7287/peerj.preprints.27149v1