Aplin JD: Implantation, trophoblast differentiation and hemochorial placentation: mechanistic evidence in vivo and in vitro. J Cell Sci 99:681, 1991.
Bianchi DW, Wilkins-Haug LE, Enders AC, Hay ED: Origin of extraembryonic mesoderm in experimental animals: relevance to chorionic mosaicism in humans. Am J Med Genet 46:542, 1993.
Cattanack BM, Beechey CV: Autosomal and X-chromosome imprinting. Dev Suppl 63, 1990.
Enders AC, King BF: Formation and differentiation of extraembryonic mesoderm in the Rhesus monkey. Am J Anat 181:327, 1988.
Enders AC, King BF: Development of the human yolk sac. In Nogales FF (ed): The Human Yolk Sac and Yolk Sac Tumors. Berlin, Springer Verlag, 1993.
Hertig AT, RockJ, Adams EC: A description of 34 human ova within the first 17 days of development. Am J Anat 98:435, 1956.
Holliday R: Genomic imprinting and allelic exclusion. Dev Suppl 125, 1990.
McMaster MT, et al: Human placental HLA-G expression is restricted to differentiated cytotro-phoblasts. J Immunol 154:3771, 1995.
Monk M, Grant M: Preferential X-chromosome inactivation, DNA methylation and imprinting. Dev Suppl 55, 1990.
Roth I, et al: Human placental cytotrophoblasts produce the immunosuppressive cytokine inter-
leukin 10. J Exp Med 184:539, 1996. Rubin GL: Ectopic pregnancy in the United States: 1970 through 1978. JAMA 249:1725, 1983.
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