Rosana Y, Effendi I, Indriatmi W, Yasmon A. Microscopic examination using negative staining for rapid diagnosis of syphilis. Univ Med [Internet]. 2022 Mar. 30 [cited 2024 Apr. 25];41(1):64-70. Available from: https://univmed.org/ejurnal/index.php/medicina/article/view/1254