Costa C, Castanheira R, Coelho F, Dias C. Primary antiphospholipid syndrome – a retrospective study of 29 patients followed in an Autoimmune Disease Unit. RPMI [Internet]. 2009 Mar. 31 [cited 2025 Apr. 3];16(1):3-7. Available from: https://revista.spmi.pt/index.php/rpmi/article/view/1376