Szu, S.C., Z. Kossaczka, E. Konadu, A. Karpas, J. Shiloach, D.A. Bryla, F.Y.C. Lin, J.B. Robbins, D.D. Trach, H.B. Khiem, V.A. Ho, and N.T.T. Thuy. 1998. “Phase II Trials of Conjugates of <em>S.typhi</em> Vi and of <em>S.paratyphi</Em&gt; A O-Speciftc Polysaccharide (O-SP) Conjugates in Dong Thap Province, Vietnam”. Medical Journal of Indonesia 7 (Supp1), 109. https://doi.org/10.13181/mji.v7iSupp1.1052.