24.06.2002
S. Black, H. Shinefield, B. Fireman, E. Lewis, P. Ray, J.R. Hansen, L. Elvin, K.M. Ensor, J. Hackell, G. Siber, F. Malinowski, D. Madore, I. Chang, R. Kohberger, W. Watson, R. Austrian, K. Edwards, The Northern California Kaiser Permanente Vaccine Study Center Group
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