CONTENTS — volume 22, no 6, 1996

Published: Dec 1996

Editorial

401
Exposure assessment -- a challenge for occupational epidemiology
Kauppinen T

Review

405
Quantification of historical exposures in occupational cohort studies
Stewart PA, Lees PSJ, Francis M

Original article

415
Exposure to 60-Hz magnetic and electric fields at a Canadian electric utility
Deadman J--E, Armstrong BG, Thériault G
425
Experts' subjective assessment of pesticide exposure in fruit growing
de Cock J, Kromhout H, Heederik D, Burema J
433
Spina bifida and parental occupation in a Swedish register-based study
Blatter BM, Roeleveld N
438
Transient increase in DNA strand breaks in car refinishing spray painters
Fuchs J, Hengstler JG, Hummrich F, Oesch F
444
Incidence of lung cancer among cobalt-exposed women
Tüchsen F, Jensen MV, Villadsen E, Lynge E
451
Bronchial asthma and air pollution at workplaces
Flodin U, Ziegler J, Jönsson P, Axelson O

Case report

457
Provocation of the electromagnetic distress syndrome
Toomingas A