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Active since
1969
Bell Sd is an author specializing in vaccination, field trial evaluation, and vaccine characterization.
Publications per year
1969–1969
Studies on trachoma. VI. Microbiological observations in a field trial in Saudi Arabia of bivalent rachoma vaccine at three dosage levels.
Nichols Rl, Bell Sd, Haddad Na et al. · PubMed · 1969 · 22 citations
Veterinary Medicine, Infectious Diseases, Microbiology +13
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