PMC9772434_01
Transvaginal sonography of 8 weeks of gestation of pregnancy.
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F1
TVS indicated a 20*20-mm cyst on the left ovary, and the thickness of the endometrium was 5.7 mm (Supplementary Table 1 and Supplementary Figure 1). The hormone test showed that the serum estrogen was 1,316 pmol/L and the FSH was 5.23 IU/L.