[Retracted] A Comparative Study of Endometriosis and Normal Endometrium Based on Ultrasound Observation

Table 1

Comparison between foreign-funded contrast agents and domestically produced contrast agents in recent years.

	2015	2016	2017	2018	2019	2020
Foreign-funded contrast agent scale	12139	17590	22800	30192	37789	53650
Domestic contrast agent scale	12200	17800	23200	30892	38700	55400
Percentage of foreign capital	99.50%	98.82%	98.28%	97.73%	97.65%	96.84%