Though Clarence supported trials of the pill, he regarded it as impractical because of its daily dose requirement and relatively high cost. The IUD was both practical and low cost, requiring one-time insertion of an inexpensive piece of plastic. Dr. Satterthwaite quickly demonstrated its safety, and Clarence began mailing out the plastic loops. The office space that he rented above Sparrs Drug Store, adjacent to Harvard Medical School, became a distribution center for IUDs. In Korea, where as many as 2,000 babies were abandoned yearly in the Seoul streets, the government welcomed this new method of practical birth control. By October 1962, Clarence had sent almost 3,000 loops to Korea.