div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=it-takes-two-to-nanohtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: It takes two to nano loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader035vdocumentsmxreader035viewer2022080107575068901a28ab0f07b0bf47html5thumbnails1jpg width=140 height=200 divp© 1993 Nature Publishing Grouppdiv