Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) OGATA M,"B cell ontogeny in murine embryo studied by a culture system with the monolayer of a stromal cell clone, ST2 : B cell progenitor develops first in the embryonal body rather than in the yolk sac",EMBO J,,,1988,7,,1337-1343,https://cir.nii.ac.jp/crid/1574231875419727744,