TY - GEN AU - Porter,D G TI - Observations on the yolk sac and Reichert's membrane of ectopic mouse embryos SN - 0003-276X PY - 1967///0418 KW - Animals KW - Embryo, Mammalian KW - cytology KW - Mice KW - Microscopy, Electron N1 - Publication Type: Journal Article UR - https://doi.org/10.1002/ar.1091540413 ER -