Table 5. Pure Tone Audiometry Case 1(Left Ear)

Date	Frequency(㎐)
	250	500	1000	2000	4000	6000	8000
2018.04.30(20days after onset)	60㏈	60㏈	40㏈	50㏈	80㏈	80㏈	80㏈
2018.05.07(27days after onset)	40㏈	30㏈	30㏈	30㏈	30㏈	40㏈	30㏈
2018.05.15(35days after onset)	20㏈	20㏈	20㏈	20㏈	30㏈	20㏈	20㏈