Effects of Khat (Catha edulis) chewing on seminal fluid parameters: findings from a fertility clinic cohort and cessation trial. Archivio Italiano di Urologia e Andrologia, [S. l.], v. 97, n. 3, 2025. DOI: 10.4081/aiua.2025.13931. Disponível em: https://www.pagepressjournals.org/aiua/article/view/13931. Acesso em: 19 jun. 2026.