As Lippes embarked on his research, many discouraged him, calling it “radical” and warning him that he would be sued. And still he forged ahead, vigorously pursuing a more effective IUD design than ...

the Lippes' loop). The size of the ParaGard does not affect its contraceptive action as it does with nonmedicated IUDs. The Progestasert (Fig. 2) was introduced in the US in 1976. This IUD is a T ...