HealthGlobal issuesBlood groups: A, B, AB, 0To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoHealthGlobal issues12/20/2022December 20, 2022How do blood groups differ? And what's the distribution of the four blood groups across the globe?https://p.dw.com/p/4Kj5mAdvertisement