(Q38516524)
Statements
1 reference
Smoking patterns by occupation and duration of employment (English)
1 reference
Hartge P
1 reference
Silverman DT
1 reference
Hoover RN
1 reference
Levin LI
1 reference
Fears TR
1 reference
1 January 1990
1 reference
1 reference
Identifiers
1 reference