CONTENTS — volume 19, no 6, 1993

Original article

Cytogenetics and occupational exposures in acute nonlymphocytic leukemia and myelodysplastic syndrome. Working Group on the Epidemiology of Hematolymphopoietic Malignancies in Italy.
Chromosome aberrations in chloralkali workers previously exposed to mercury vapor.
Classification system for work in occupational health services.
Work content of Norwegian occupational physicians.
Multiple sclerosis and exposure to solvents, ionizing radiation and animals.
Minor effects of low exposure to inorganic mercury on the human immune system.
Effect of bright light on tolerance to night work.
Microbial growth on respirator filters from improper storage.
Mortality update of cellulose fiber production workers.
Fatal cadmium-induced pneumonitis.

Letter to the Editor

Re: "Urinary styrene in the biological monitoring of styrene exposure" by F Gobba, C Galassi, S Ghittori, M Imbriani, F Pugliese, A Cavaleri. Scand J Work Environ Health 1993; 19:175-82.