div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=document402-a-the-human-abo-blood-groups-were-discovered-by-austrian-born-american-biologisthtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: 402-A · The human ABO blood groups were discovered by Austrian-born American biologist Karl Landsteiner in 1901 Landsteiner found that there are substances in the blood antigens loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader036fdocumentsnetreader036viewer20220814045f03f30a7e708231d40b9163html5thumbnails1jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imageimg data-url=document402-a-the-human-abo-blood-groups-were-discovered-by-austrian-born-american-biologisthtmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: 402-A · The human ABO blood groups were discovered by Austrian-born American biologist Karl Landsteiner in 1901 Landsteiner found that there are substances in the blood antigens loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader036fdocumentsnetreader036viewer20220814045f03f30a7e708231d40b9163html5thumbnails2jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imageimg data-url=document402-a-the-human-abo-blood-groups-were-discovered-by-austrian-born-american-biologisthtmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: 402-A · The human ABO blood groups were discovered by Austrian-born American biologist Karl Landsteiner in 1901 Landsteiner found that there are substances in the blood antigens loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII=...