RT Article T1 Factors associated with smokeless tobacco use and dual use among blue collar workers JF Public health nursing VO 31 IS 1 SP 19 OP 27 A1 Noonan, D. A1 Duffy, S.A. A2 Duffy, S.A. LA English YR 2014 UL https://krimdok.uni-tuebingen.de/Record/1912554127 DO 10.1111/phn.12095/full