Authors: M-L Wang; Z-E Wu; Q-G Du; E L Petsonk; K-L Peng; Y-D Li; S-K Li; G-H Han; M D Atffield Journal: Occup Environ Med Date: 2005-11 Impact factor: 4.402
Authors: M Ahman; R Alexandersson; U Ekholm; B Bergström; M Dahlqvist; U Ulfvarson Journal: Int Arch Occup Environ Health Date: 1991 Impact factor: 3.015