60. YANAGIMACHI R, University of Hawaii. Reproductive cloning in animals. Workshop: Scientific and Medical Aspects of Human Cloning. National Academy of Sciences, Washington, D.C., 2001 Aug 7. Online at: www.nationalacademies.org/humancloning

61. OHGANE J, WAKAYAMA T, KOGO Y, SENDA S, HATTORI N, TANAKA S, YANAGIMACHI R, SHIOTA K. DNA methylation variation in cloned mice. Genesis 2001 Jun, 30(2):45-50.

62. KEVERNE EB, FUNDELE R, NARASIMHA M, BARTON SC, SURANI MA. Genomic imprinting and the differential roles of parental genomes in brain development . Brain Res Dev Brain Res 1996 Mar 29, 92(1):91-100.

63. HEMBERGER M, REDIES C, KRAUSE R, OSWALD J, WALTER J, FUNDELE RH. H19 and Igf2 are expressed and differentially imprinted in neuroectoderm-derived cells in the mouse brain. Dev Genes Evol 1998 Sep, 208(7):393-402.

64. ANDREWS L, ELSTER N, GATTER R, HORWICH TF, JAEGER A, KLOCK S, PERGAMENT E, PIZZULI F, SHAPIRO R, SIEGLER M, SMITH P, ZAGER S. ART into science: Regulation of fertility techniques. Science 1998 Jul 31, 281(5377):651-2.

65. TE VELDE ER, VAN BAAR AL, VAN KOOIJ RJ. Concerns about assisted reproduction. Lancet 1998 May 23, 351(9115):1524-5.

66. CHARO RA, University of Wisconsin, Madison. Regulation of cloning. Workshop: Scientific and Medical Aspects of Human Cloning. National Academy of Sciences, Washington D.C., 2001 Aug 7. Online at: www.nationalacademies.org/humancloning

67. ANDREWS LB, ELSTER N. Regulating reproductive technologies. J Leg Med 2000 Mar, 21(1):35-65.

68. Human Fertilisation and Embryo Authority. Online at: http://www.hfea.gov.uk/

69. Centers for Disease Control. Online at: http://www.cdc.gov

70. Assisted reproductive technology in the United States: 1997 results generated from the American Society for Reproductive Medicine/Society for Assisted Reproductive Technology Registry. Fertil Steril 2000 Oct, 74(4):641-53; discussion 653-4.

71. Assisted reproductive technology in the United States: 1996 results generated from the American Society for Reproductive Medicine/Society for Assisted Reproductive Technology Registry. Fertil Steril 1999 May, 71(5):798-807.

72. Assisted reproductive technology in the United States and Canada: 1995 results generated from the American Society for Reproductive Medicine/Society for Assisted Reproductive Technology Registry. Fertil Steril 1998 Mar, 69(3):389-98.

73. Assisted reproductive technology in the United States and Canada: 1993 results generated from the American Society for Reproductive Medicine/Society for Assisted Reproductive Technology Registry. Fertil Steril 1995 Jul, 64(1):13-21.

74. Assisted reproductive technology in the United States and Canada: 1992 results generated from the American Fertility Society/Society for Assisted Reproductive Technology Registry. Fertil Steril 1994 Dec, 62(6):1121-8.

75. Assisted reproductive technology in the United States and Canada: 1991 results from the Society for Assisted Reproductive Technology generated from the American Fertility Society Registry. Fertil Steril 1993 May, 59(5):956-62.