SONIA QURESHI et al. Detection of typhoid carriers by duodenal fluid culture in a tertiary care hospital, Karachi: a cross-sectional study. Journal of the Pakistan Medical Association, [S. l.], v. 71, n. 8, p. 2069–2072, 2021. DOI: 10.47391/JPMA.580. Disponível em: https://www.jpma.org.pk/index.php/public_html/article/view/217. Acesso em: 27 jul. 2026.