Category «My Health»

13 Blood Donation Facts – How to give Blood – Blood Donation Chart


“Interesting Facts on Blood Donation Chart Can Make You Winner On Death”. When a person’s blood is analyzed knocked out a microscope separate blood differences are visible. In the 20th century, an Austrian scientist named Karl Landsteiner identified blood groups (A, B, O) according to those differences. Landsteiner observed two separate chemical molecules existing the …