div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imagea href=https:reader042vdocumentsusreader042viewer20220205235750682f1a28ab0f07aefd28html5page1jpg target=_blank img data-url=derivatives-of-2-aminoethyl-guanidine-and-of-a-eugenol-as-virus-inhibitorshtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: Derivatives of 2-Aminoethyl-guanidine and of a Eugenol as Virus Inhibitors loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader042vdocumentsusreader042viewer20220205235750682f1a28ab0f07aefd28html5thumbnails1jpg width=140 height=200 adivp© Nature Publishing Group1965pdiv