Xu, W., & Zhou, H. (2012). Mixed effect regression analysis for a cluster-based two-stage outcome-auxiliary-dependent sampling design with a continuous outcome. Biostatistics (Oxford, England), 13(4), 650-664. https://doi.org/10.1093/biostatistics/kxs013
Chicago Style (17th ed.) CitationXu, W., and H. Zhou. "Mixed Effect Regression Analysis for a Cluster-based Two-stage Outcome-auxiliary-dependent Sampling Design with a Continuous Outcome." Biostatistics (Oxford, England) 13, no. 4 (2012): 650-664. https://doi.org/10.1093/biostatistics/kxs013.
MLA (9th ed.) CitationXu, W., and H. Zhou. "Mixed Effect Regression Analysis for a Cluster-based Two-stage Outcome-auxiliary-dependent Sampling Design with a Continuous Outcome." Biostatistics (Oxford, England), vol. 13, no. 4, 2012, pp. 650-664, https://doi.org/10.1093/biostatistics/kxs013.