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Effect of hBP3 expression in chicken embryos. A, placement of the injection needle into the allantoic sac of a 4-day-old embryo. e, eye; a, allantoic sac; scale bar, 1 mm. B, survival rates of embryos (+S.E.) injected with 4 μg of control (pcDNA3.1) or hBP3 expression vector DNA. ***, p < 0.0001, control versus hBP3.
