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Shah U, Jaswal GS, Mansharamani HJ, Plotkin SA, Wiktor TJ.Shah U, et al. Among authors: plotkin sa.Br Med J. 1976 Apr 24;1(6016):997. doi: 10.1136/bmj.1.6016.997.Br Med J. 1976.PMID: 1268537Free PMC article.Clinical Trial.No abstract available.
Wiktor TJ, Plotkin SA, Grella DW.Wiktor TJ, et al. Among authors: plotkin sa.JAMA. 1973 May 21;224(8):1170-1.JAMA. 1973.PMID: 4739864No abstract available.