1Liew SH,Elsner H,Spector TD,et al.The first"classical"twin study?Analysis of refractive error using monozygotic and dizygotic twins published in 1922[J].Twin Res Hum Genet,2005,8(3):198-200.
2Scourfield J,Van den Bree M,Martin N,et al.Conduct problems in children and adolescents:a twin study[J].Arch Gen Psychiatry,2004,61(5):489-496.
3Scardo JA,Ellings JM,Newman RB.Prospective determination of chorionicity,amnionicity,and zygosity in twin gestations[J].Am J Obstet Gynecol,1995,173(5):1376-1380.
4Ooki S,Asaka A.Zygosity diagnosis in young twins by questionnaire for twins'mothers and twins'self-reports[J].Twin Res,2004,7(1):5-12.
5Yang MJ,Tzeng CH,Tseng JY,et al.Determination of twin zygosity using a commercially available STR analysis of 15 unlinked loci and the gender-determining marker amelogenin-a preliminary report[J].Hum Reprod,2006,21(8):2175-2179.
7Liew SH, Eisner H, Spector TD, et al. The first " classical" twin study? Analysis of refractive error using monozygotic and dizygotic twins published in 1922 [J]. Twin Research and Human Genetics, 2005, 8 (3): 198-200, Jun.
8Zengchang Pang, Feng Ning, Jennifer Unger, et al. The Qingdao Twin Registry A Focus on Chronic Disease Reserch [J]. Twin Research and Human Genetics, 2006, 9 (6): 758-762, Sep.
9Mingguang He, Jian Ge, Yingfeng Zhang, et al. The Guangzhou Twin Project [J]. Twin Research and Human Genelics, 2006, 9 (6) : 753-757.
10Skytthe A, Kyvik K, Holm NV, et al. The Danish Twin Registry: 127 birth cohorts of twins [J]. Twin Research, 2002, 5 (5) : 352-7.
