CONTENTS — volume 23, no 1, 1997

Published: Feb 1997

Editorial

1
Lead and cancer -- association or causation?
Vainio H

Review

5
Need for a European approach to the effects of extremely low-frequency electromagnetic fields on cancer
ELF-EMF European Feasibility Study Group

Original article

15
Mortality of Italian lead smelter workers
Cocco P, Hua F, Boffetta P, Carta P, Flore C, Flore V, Onnis A, Picchiri GF, Colin D
24
Cumulative lead exposure in relation to mortality and lung cancer morbidity in a cohort of primary smelter workers
Lundström N-G, Nordberg G, Englyst V, Gerhardsson L, Hagmar L, Jin T, Rylander L, Wall S
31
Blood cadmium as an indicator of dose in a long-term follow-up of workers previously exposed to cadmium
Järup L, Persson B, Elinder C-G
37
Elevated serum levels of pantropic p53 proteins in chromium workers
Hanaoka T, Yamano Y, Katsuno N, Kagawa J, Ishizu S
41
Fibrosis of the lung and pleura and long-term exposure to wollastonite
Koskinen HO, Nordman HL, Zitting AJ, Suoranta HT, Anttila SL, Taikina-aho OSA, Luukkonen RA
48
Relationship between asbestos bodies in sputum and the number of specimens
Sulotto F, Capellaro E, Chiesa A, Villari S, Bontempi S, Scansetti G
54
Effects of work-related stress reduction on depressive symptoms among Japanese blue-collar workers
Kawakami N, Araki S, Kawashima K, Masumoto T, Hayashi T

Short communication

60
Subjective symptoms among motorcycling traffic policemen
Mirbod SM, Inaba R, Iwata H

Commentary

64
On the epidemiologic notion of confounding and confounder identification
Nurminen M

Letter to the editor

69
The sex ratio of offspring sired by men exposed to wood preservatives contaminated by dioxin
James W

Meeting report

70
ICOH'96 -- 25th international congress on occupational health
Talvi A