1. Investigating causation in cancer clusters

   • Clark W. Heath

   Review Article Pages: 133 - 136

2. Use of subjective and nonsubjective methodologies to evaluate lens radiation damage in exposed populations — an overview

   • Basil V. Worgul
   • Yuri Kundiev
   • Cecily P. Medvedovsky

   Review Article Pages: 137 - 144

3. Generalization of the variance-covariance method for microdosimetric measurements

   • A. M. Kellerer

   Original Paper Pages: 145 - 152

4. Energy spectra of secondary electrons in water vapour

   • Shuzo Uehara
   • Hooshang Nikjoo

   Original Paper Pages: 153 - 157

5. Founding Conference Deutsche Gesellschaft für Strahlenforschung (German Association of Radiation Research)

   Announcement Pages: 158 - 158

6. High-energy electron irradiation of proteins and nucleic acids: collisional stopping power and average energy loss

   • R. S. Ronan
   • W. F. Heinz
   • E. S. Kempner

   Original Paper Pages: 159 - 162

7. Two types of double-strand breaks in electron and photon tracks and their relation to exchange-type chromosome aberrations

   • V. Michalik
   • D. Frankenberg

   Original Paper Pages: 163 - 169

8. Book reviews

   • D. E. Watt
   • D. Regulla

   BookReview Pages: 170 - 170

9. Complex repair kinetics of DNA strand breaks induced by γ-rays or UV radiation in Ehrlich ascites tumour cells

   • P. Mlejnek
   • S. Kozubek

   Original Paper Pages: 171 - 177

10. Book Reviews

    • J. E. Turner
    • U. Hagen

    BookReview Pages: 178 - 178

11. Analysis of chromosome aberrations in human peripheral lymphocytes induced by in vitro α-particle irradiation

    • E. Schmid
    • L. Hieber
    • A. M. Kellerer

    Original Paper Pages: 179 - 184

12. Modulation of the effect of camptothecin in x-irradiated L5178Y-R and L5178Y-S cells by benzamide

    • Iwona Grądzka
    • Teresa Iwaneńko
    • Georgij Afanasjev

    Original Paper Pages: 185 - 191

13. Lack of protection by carotenes against gamma-radiation damage in Phycomyces

    • V. Martín-Rojas
    • A. Gómez-Puerto
    • E. Cerdá-Olmedo

    Original Paper Pages: 193 - 197

14. Influence of 50-Hz electric and magnetic fields on human blood pressure

    • L. Korpinen
    • J. Partanen

    Original Paper Pages: 199 - 204

15. Radiation exposure from radionuclides in ground water: an uncertainty analysis for selected exposure scenarios

    • G. Pröhl
    • H. Müller

    Original paper Pages: 205 - 218

16. Nuclear waste repositories in salt mines: a new approach to safety assessment

    • G. Memmert

    Original Paper Pages: 219 - 228

17. Association of fallout radiocesium with soil constituents: effect of sterilization of forest soils by fumigation with chloroform

    • A. Baumann
    • W. Schimmack
    • K. Bunzl

    Short Communication Pages: 229 - 233