(Q40940827)
Statements
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Respiratory virus vaccines. 8. Field evaluation of trivalent parainfluenza virus vaccine among preschool children in families, 1967-1968. (English)
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Hilleman MR
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Vella PP
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Weibel RE
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Woodhour AF
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Mascoli CC
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Leagus MB
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Ittensohn OL
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Stokes J Jr
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1 April 1969
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