TY - RPRT TI - Bone marrow microenvironmental changes underlie reduced RAG-mediated recombination and B cell generation in aged mice. AU - Joseph E Labrie AU - Alex P Sah AU - David M Allman AU - Michael P Cancro AU - Rachel M Gerstein PY - 2004 DO - 10.1084/jem.20040845 UR - https://pubmed.ncbi.nlm.nih.gov/15314072/ ID - 15314072 ER -