TY - RPRT TI - Decrease of CD4+ T-lymphocytes in children exposed to environmental lead. AU - Sun Li AU - Zhao Zhengyan AU - Li Rong AU - Cheng Hanyun PY - 2005 DO - 10.1385/bter:105:1-3:019 UR - https://pubmed.ncbi.nlm.nih.gov/16034150/ ID - 16034150 ER -