Scalp haircuts, keloids and blood-borne virus transmission risk in South Africa—The SHAKA study - Nonhlanhla Khumalo; Avumile Mankahla; Stephen Korsman; Freedom Gumedze; Wisdom Basera; Anthia Ndyenga; Lwazi Mhlanti; Mashiko Setshedi; Ruanne Barnabas; C. Wendy Spearman; Mark W. Sonderup (PLoS ONE, 2025)