Baseline DPOAE CAE treatment Noise DPOAE+Sacrifice DPOAE recovery
Groups Day 0 28 days of treatment Day 29 Day 29 1-week and 4-week post-noise
Control (N=14) water   + (N=9)
Noise (N=13)   noise + (N=8)
CAE (N=10) CAE   +  
Noise+CAE (N=11) CAE noise + (N=6)
Abbreviations: CAE, Carboxy alkyl esters; DPOAE, distortion product otoacoustic emissions
Table 1: Experimental design.