Anonymous ID: b1b30e Jan. 12, 2019, 10:40 a.m. No.4726963 🗄️.is 🔗kun >>6988 >>4726844 >>4726853 I think this anon is closer to the truth. HLA matching is important so that patients do not reject the organ they're receiving. It's sometimes extremely difficult to find a match and it goes well beyond RHO antibodies or even rare antibodies.