Approach to the Study of Inapparent Form of Relapses in Typhus Fever. Acta Medica Academica, [S. l.], v. 17, p. 37–44, 1973. DOI: 10.5644/Radovi.167. Disponível em: https://ama.ba/index.php/ama/article/view/876. Acesso em: 3 feb. 2026.