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1977
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1977
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c. Did --'s (symptom) last more or less than 24 hours?

[] Und. 19 (NP)
1 [] Para.
1 [] Less than 24 hours
2 [] More than 24 hours
2 [] Numb.
1 [] Less than 24 hours
2 [] More than 24 hours
3 [] Vis.
1 [] Less than 24 hours
2 [] More than 24 hours
4 [] Spe.
1 [] Less than 24 hours
2 [] More than 24 hours