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Fig. 5. Tracheal diameters vs position in the first plasticity trial
(similar patterns were observed in the other trials). Alphanumerical values
along the x-axis correspond to the six measurement positions
described in Fig. 2, with a
being the diameter at the anterior anastomosis and f being the diameter at the
posterior anastomosis. Lines are defined using spline curves. Asterisks
indicate a significant effect (P<0.02) of oxygen on diameter.