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Figure 1 | Journal of Occupational Medicine and Toxicology

Figure 1

From: Uniform comparison of several drugs which provide protection from noise induced hearing loss

Figure 1

Flow diagram of the experiment. All of the animals received the same total number of injections, as drug injections necessary for the experiment were supplemented with control solution injections. For example, group #3 received a single injection of furosemide 0.5 hours before the exposure to 3.5 hours of noise, but in addition was injected with saline over the two preceding days and over the following five days in order to make up the number of injections. NAC - N-acetyl-l-cysteine; ACE - vitamins A, C and E; IP - intraperitoneal injection; PTS - permanent threshold shift; ABR - auditory nerve brainstem evoked response; BBN - broadband noise.

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