CONTENTS — volume 17, no 3, 1991

Original article

Effects of low-frequency magnetic fields on embryonic development and pregnancy.
A collaborative study of cancer incidence and mortality among vinyl chloride workers.
Silicosis and lung cancer among Chinese granite workers.
Mortality of employees in plants manufacturing 4,4'-bipyridyl.
Effects of asbestos-related pleural disease on pulmonary function.
Diagnostic value of finger systolic blood pressure in the assessment of vasospastic reactions in the finger skin of vibration-exposed subjects after finger and body cooling.
Immunologic measurement of polycyclic aromatic hydrocarbon-albumin adducts in foundry workers and roofers.
A field method for measuring solvent vapors in exhaled air--application to styrene exposure.
Polyneuropathy possibly caused by 30 years of low exposure to n-hexane.
Immediate and delayed allergy from epoxy resins based on diglycidyl ether of bisphenol A.

Letter to the Editor

Disparity between estimated numbers and reported cases of occupational cancer.