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. Author manuscript; available in PMC: 2019 Sep 1.
Published in final edited form as: J Voice. 2017 Aug 30;32(5):644.e1–644.e9. doi: 10.1016/j.jvoice.2017.08.003

Figure 3.

Figure 3

Average F1–F2 data for each of the three age cohorts superimposed on the F1–F2 acoustic space from Peterson and Barney (1952; P&B)[39] and Hillenbrand et al. (1995; HGC&W)[34]. Top figure shows the data for women and bottom figure for men.