Gallis, J. A., Li, F., & Turner, E. L. (2020). xtgeebcv: A command for bias-corrected sandwich variance estimation for GEE analyses of cluster randomized trials. The Stata journal, 20(2), 363. https://doi.org/10.1177/1536867x20931001
Chicago Style (17th ed.) CitationGallis, John A., Fan Li, and Elizabeth L. Turner. "Xtgeebcv: A Command for Bias-corrected Sandwich Variance Estimation for GEE Analyses of Cluster Randomized Trials." The Stata Journal 20, no. 2 (2020): 363. https://doi.org/10.1177/1536867x20931001.
MLA (9th ed.) CitationGallis, John A., et al. "Xtgeebcv: A Command for Bias-corrected Sandwich Variance Estimation for GEE Analyses of Cluster Randomized Trials." The Stata Journal, vol. 20, no. 2, 2020, p. 363, https://doi.org/10.1177/1536867x20931001.