Zhang, H.P. and Zhu, H.T. Generalized Score Test of Homogeneity for Mixed Effects Models. Annals of Statistics 34: 1545-1569, 2006
Zhang, H.P., Wang, X., and Ye, Y. Detection of Genes for Ordinal Traits in Nuclear Families and a Unified Approach for Association Studies. Genetics 172: 693-699, 2006.
Zhang, H.P., Feng, R., and Leckman, J. Linkage Analysis of Ordinal Traits for Pedigree Data. Proceedings of the National Academy of Sciences, USA 101: 16739-16744, 2004
Zhang, H.P. Leckman, J.F., Pauls, D.L., Tsai, C.-P., Kidd, K.K., Campos, M.R. and The Tourette Syndrome Association International Consortium for Genetics. Genome Wide Scan of Hoarding in Sibling Pairs both Diagnosed with Gilles de la Tourette Syndrome. American Journal of Human Genetics 70: 2002
Zhang, H.P., Tsai, C.-P., Yu, C.-Y., and Bonney, G. Tree-based linkage and association analyses of asthma. Genetic Epidemiology 21: S317-S322, 2001.
Zhang, H.P., Yu, C-Y, Singer, B. and Xiong, M. Recursive Partitioning for Tumor Classification with Gene Expression Microarray Data. Proceedings of the National Academy of Sciences USA 98: 6730-6735, 2001.
Zhang, H.P. Classification Trees for Multiple Binary Responses. Journal of the American Statistical Association 93: 180-193, 1998.