Table 4. Pure Tone Audiometry (Left Ear)

Date	Frequency(㎐)
	250	500	750	1,000	1,500	2,000	3,000	4,000	6,000
2021.1.5	50㏈	40㏈	40㏈	30㏈	50㏈	50㏈	50㏈	70㏈	80㏈
2021.1.8	50㏈	40㏈	40㏈	30㏈	30㏈	30㏈	30㏈	70㏈	80㏈