I don't see a particular number cited, but a whistleblower alleges that it occurred so often, a particular doctor was known as "the uterus collector".

(Her complaint is largely about failure to follow proper procedures for COVID, and this "uterus collector" thing is not the bulk of her story. Obviously that's a pretty explosive allegation though.)

https://www.democracynow.org/2020/9/22/dawn_wooten_ice_force...