
Genetic modification of ALAD and VDR on lead-induced impairment of hearing in children
Keywords: ALAD, δ-aminolevulinic acid dehydratase; BAEP, brainstem auditory evoked potential; B–Pb, blood–lead concentration; CDC, Centre for Disease Control and Prevention; CNS, central nervous system; PTA, pure-tone audiometry; PCR, polymerase chain reaction; SNP