Polycyclic aromatic hydrocarbons exposure levels in the middle and old age residents around a petrochemical enterprise
XIA Ling, ZHAO Bo, WANG Bo-guang, ZHANG Su-kun, REN Ming-zhong
S China J Prev Med . 2014, (4): 333 -337 .  DOI: 10.13217/j.scjpm.2014.0333