We are looking for the name of the manufacturer of etheron, a sponge breast implant used in the 1960s. I posted this question earlier this month but haven't received any good leads so thought I would try again. I've talked with FDA (they did not require reg- istration of companies at that time, have searched DIALOG,includ- ing Medline, LEXIS/NEXIS, talked with the American Society of Re- constructive & Plastic Surgeons, searched NLM , and spoken with the Dow Corning Breast Implant Hotline.Old Medical Device Registers don't have the answer either. We'll appreciate any help very much. Please reply to [log in to unmask] Thanks!