CONTENTS — volume 17, no 5, 1991

Original article

Is passive smoking in the workplace hazardous to health?
A classification system for causes of occupational accidents for use in preventive strategies.
Mortality among professional drivers.
Congenital malformations and exposure to high-frequency electromagnetic radiation among Danish physiotherapists.
Gender-specific reproductive outcome and exposure to high-frequency electromagnetic radiation among physiotherapists.
Spectral analysis of sleep electroencephalography in rotating three-shift work.
Back disorders and nonneutral trunk postures of automobile assembly workers.
Changes in muscle morphology in chronic trapezius myalgia.
Cancer incidence among pulp and paper workers exposed to organic chlorinated compounds formed during chlorine pulp bleaching.