Elbourne, D., Altman, D., Higgins, J., Curtin, F., Worthington, H., & Vail, A. (2002). Meta-analyses involving cross-over trials: Methodological issues.
芝加哥风格引文Elbourne, DR, D. Altman, J. Higgins, F. Curtin, H. Worthington, 与 A. Vail. Meta-analyses Involving Cross-over Trials: Methodological Issues. 2002.
MLA引文Elbourne, DR, et al. Meta-analyses Involving Cross-over Trials: Methodological Issues. 2002.
警告：这些引文格式不一定是100％准确.