Fang, Liang Pb exposure attenuates hypersensitivity in vivo by increasing regulatory T cells. [electronic resource] - Toxicology and applied pharmacology Dec 2012 - 272-8 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 1096-0333 Standard No.: 10.1016/j.taap.2012.10.001 doi Subjects--Topical Terms: AnimalsCytokines--bloodEnzyme-Linked Immunosorbent AssayFlow CytometryHistocytochemistryHypersensitivity, Delayed--chemically inducedLead--bloodMaleRatsRats, Sprague-DawleySpecific Pathogen-Free OrganismsT-Lymphocyte Subsets--cytologyT-Lymphocytes, Regulatory--cytologyThymus Gland--cytology