CCR5-del32 is not deleterious in the homozygous state in humans Gudbjartsson D, Sulem P, Stefansson K, Mars N, Karjalainen J, Ripatti S, Palotie A, Daly M. bioRxiv 788117; doi: https://doi.org/10.1101/788117. https://www.biorxiv.org/content/10.1101/788117v1 Preprint Oct 02, 2019