CONTENTS — volume 9, no 5, 1983

Published: Oct 1983

Original article

371
Methods for detecting occupational causes of male infertility. Reproductive history versus semen analysis.
Levine RJ
377
Some remarks on the operation of biases.
Nurminen M
385
Pulmonary function and concentrations of alpha 1-antitrypsin and immunoglobulin E in workers exposed to pancreatic enzymes.
Sjogren B, Hedenstierna G
391
Effects of trace levels of nitrous oxide on psychomotor performance.
Venables H, Cherry N, Waldron HA, Buck L, Edling C, Wilson HK
397
Elimination of chromium in urine after stainless steel welding.
Welinder H, Littorin M, Gullberg B, Skerfving S
405
Human response to controlled levels of toluene in six-hour exposures.
Andersen I, Lundqvist GR, Molhave L, Pedersen OF, Proctor DF, Vaeth M, Wyon DP
419
Tissue distribution of styrene, styrene glycol and more polar styrene metabolites in the mouse.
Lof A, Gullstrand E, Byfalt Nordqvist M
431
Neurophysiological effects of lead exposure.
Rosen I, Wildt K, Gullberg B, Berlin M
443
Lung cancer, stomach cancer, and smoking status among coal miners. A preliminary test of a hypothesis.
Ames RG, Gamble JF

Letter to the Editor

449
Cutting oils and bladder cancer.
Vineis P, Di Prima S