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. 2015 May 5;10(5):e0125642. doi: 10.1371/journal.pone.0125642

Fig 1. Daily number of Influenza A positive cases by age group in 2011/12 (1A) and 2012/13 (1B) seasons in Odate City, Akita, Japan.

Fig 1

* The day of epidemic midpoint was set as Day 0. Those dates were February 8, 2012 and February 2, 2013, respectively.