1. Thioether concentration and mutagenicity of urine from cigarette smokers

   • R. van Doorn
   • R. P. Bos
   • P. Th. Henderson

   Original Works Pages: 159 - 166

2. Electrocardiographic signs of cor pulmonale in asbestosis

   • K. Kokkola
   • M. S. Huuskonen

   Original Works Pages: 167 - 175

3. An effect of erythrocyte protoporphyrin on blood manganese in lead-exposed children and adults

   • A. A. E. Wibowo
   • H. J. A. Sallé
   • R. L. Zielhuis

   Original Works Pages: 177 - 182

4. Passive smoking: Irritating effects of the total smoke and the gas phase

   • A. Weber
   • T. Fischer
   • E. Grandjean

   Original Works Pages: 183 - 193

5. Controlled studies of human exposure to single and combined action of NO₂,O₃, and SO₂

   • G. von Nieding
   • H. M. Wagner
   • A. Beuthan

   Original Works Pages: 195 - 210

6. A study of weekly and rapidly rotating shiftworkers

   • P. Smith

   Original Works Pages: 211 - 220