Letchworth, A. T., Gordon, Y. B., Leighton, P. C., & Kitau, M. J. (1977). Raised amniotic fluid concentrations of alpha-fetoprotein in a twin pregnancy.
Παραπομπή Chicago StyleLetchworth, A T., Y B. Gordon, P C. Leighton, και M J. Kitau. Raised Amniotic Fluid Concentrations of Alpha-fetoprotein in a Twin Pregnancy. 1977.
Παραπομπή MLALetchworth, A T., Y B. Gordon, P C. Leighton, και M J. Kitau. Raised Amniotic Fluid Concentrations of Alpha-fetoprotein in a Twin Pregnancy. 1977.
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