TY - JOUR T1 - Searching for trial protocols: A comparison of methods JO - Research Synthesis Methods UR - http://eprints.whiterose.ac.uk/122891/ PY - 2017/11/22 AU - Sutton AJ AU - Galvan De La Cruz MC AU - Leaviss J AU - Booth A ED - DO - DOI: 10.1002/jrsm.1281 PB - Wiley Y2 - 2024/12/21 ER -