1. Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University School of Medicine, Xi'an, P.R. China.
2. Section on Molecular Morphogenesis, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD); Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute (NCI); National Institutes of Health, Bethesda, Maryland.
3. Gene Regulation Section, Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute (NCI); National Institutes of Health, Bethesda, Maryland.