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. 1969;41(3-4-5):566–569.
A field evaluation of inactivated, zonal-centrifuged influenza vaccines in children in Chapel Hill, North Carolina, 1968-69*
From the Department of Pediatrics, School of Medicine, University of North Carolina, Chapel Hill, N.C., USA. This study was supported by Research Contract PH 43-67-48 from the Vaccine Development Branch, National Institute for Allergy and Infectious Diseases, National Institutes of Health.