Retief F, Coetzee P. Owren se siekte (Kongenitale faktor V-tekort, parahemofilie) by twee kleurlingsusters. samj [Internet]. 2018 Dec. 13 [cited 2026 Aug. 18];38(7):544-7. Available from: https://www.ajol.info/index.php/samj/article/view/181041