Updated On: 14 June, 2016 08:48 AM IST | | midday online correspondent
<p>Google commemorates Karl Landsteiner, an Austrian and American biologist and physician, who discovered the existence of blood types A, B, AB and O in 1900, on his 148th birth anniversary</p>

Google commemorates Karl Landsteiner, an Austrian and American biologist and physician, who discovered the existence of blood types A, B, AB and O in 1900, on his 148th birth anniversary.

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