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Control sections at different days of pregnancy of the subplacenta and syncytial streamers (A, D), interlobium (B, E) and mesometrial arteries (C, F), which yielded no immunoreactivity incubated with non-specific IgG from mouse (1:50) and rabbit (1:100), species in which the antibodies were raised. Mouse IgG serum in (A, B, C) and rabbit IgG fraction in (D, E, F). Bar = 100 μm
