div class=ts-pagebuttonPage 1button div class=ts-image a href=https:reader040vdocumentsmxreader040viewer2022020523575068451a28ab0f07af6444html5page1jpg target=_blank amp-img class=ts-thumb alt=Page 1: Recommended Procedures for testing Genetic Hazards from Chemicals based on the Induction of Dominant Lethal Mutations in Mammals src=https:reader040vdocumentsmxreader040viewer2022020523575068451a28ab0f07af6444html5thumbnails1jpg width=142 height=106 layout=responsive amp-imga divp© 1971 Nature Publishing Grouppdivdiv class=ts-pagebuttonPage 2button div class=ts-image a href=https:reader040vdocumentsmxreader040viewer2022020523575068451a28ab0f07af6444html5page2jpg target=_blank amp-img class=ts-thumb alt=Page 2: Recommended Procedures for testing Genetic Hazards from Chemicals based on the Induction of Dominant Lethal Mutations in Mammals src=https:reader040vdocumentsmxreader040viewer2022020523575068451a28ab0f07af6444html5thumbnails2jpg width=142 height=106 layout=responsive amp-imga divp© 1971 Nature Publishing Grouppdiv