ABO blood group test

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Full video ABO and Rh blood grouping (theory + practical): • Abo Blood Grouping Tes...
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[@amartyabanerjee5537]

What's the 4 th solution?

[@TheSingtangpaScienceGuy]

Control. Normal saline + blood

[@MakeAsylumsGre4tAgain]

Dude, shorts are not horizontally framed… you need to make sure it’s 1020x1980