div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=artificial-production-of-immunological-tolerance-induced-tolerance-to-heterologoushtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: Artificial Production of Immunological Tolerance: Induced Tolerance to Heterologous Cells and Induced Susceptibility to Virus loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader030vdocumentinreader030viewer2022020522575068041a28ab0f07ae34d6html5thumbnails1jpg width=140 height=200 divp© 1955 Nature Publishing Grouppdivdiv class=ts-pagebutton class=gotoPage data-page=2Page 2button div class=ts-imageimg data-url=artificial-production-of-immunological-tolerance-induced-tolerance-to-heterologoushtmlpage=2 data-page=2 class=ts-thumb lazyload alt=Page 2: Artificial Production of Immunological Tolerance: Induced Tolerance to Heterologous Cells and Induced Susceptibility to Virus loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader030vdocumentinreader030viewer2022020522575068041a28ab0f07ae34d6html5thumbnails2jpg width=140 height=200 divp© 1955 Nature Publishing Grouppdiv