BOISE, Idaho (AP) — Four women are suing a southern Idaho doctor because they say they were given counterfeit breast implants and knock-off Botox without their knowledge.

The women filed the lawsuit in U.S. District Court on Friday, contending that Dr. Temp Patterson, a plastic surgeon in the southern Idaho town of Burley, used implants and injections that were imported from China and not FDA approved. Patterson did not immediately return phone calls requesting comment.

Rick Hearn, an attorney and former medical doctor who is representing the women, says he believes that there are other women who remain unaware that they were given counterfeit medical products. Hearn said three women in the lawsuit are in the process of having the Chinese breast implants surgically removed.