TY - GEN AU - Chen,L T AU - Ruth,R F TI - Nuclear structure in lymphoid primordia SN - 0028-0836 PY - 1967///0102 KW - Animals KW - Bursa of Fabricius KW - embryology KW - Chick Embryo KW - Ectoderm KW - Endoderm KW - Lymphoid Tissue KW - Thymus Gland N1 - Publication Type: Journal Article UR - https://doi.org/10.1038/209381a0 ER -