In reference to the paper by Bass et al. 51:183–186 K. ÜberlaB. Schnieders Letter to the Editor Pages: 187 - 187
Retrospective study on the reliability of an “approximate LD50” determined with a small number of animals H. MüllerH. -P. Kley Original Investigations Pages: 189 - 196
A new approach to minimizing the number of animals used in acute toxicity testing and optimizing the information of test results E. SchützH. Fuchs Original Investigations Pages: 197 - 220
Investigation of the acute toxicity of some trimethyl and triethyl phosphorothioates with particular reference to those causing lung damage R. D. VerschoyleJ. R. P. Cabral Original Investigations Pages: 221 - 231
Embryotoxicity of chromium: Distribution in pregnant mice and effects on embryonic cells in vitro Bengt R. G. DanielssonEzdihar HassounLennart Dencker Original Investigations Pages: 233 - 245
The effect of prior treatment with 4-dimethylaminophenol (DMAP) on animals experimentally poisoned with hydrogen cyanide T. C. MarrsJ. E. BrightD. W. Swanston Original Investigations Pages: 247 - 253
Formation of carcinogenic and inactive chrysene metabolites by rat liver microsomes of various monooxygenase activities Jürgen JacobAchim SchmoldtGernot Grimmer Original Investigations Pages: 255 - 265
Subchronic oral toxicity of strychnine in rats Ivan SeidlGerhard Zbinden Short Communication Pages: 267 - 271