US dollars <a href=" http://kata-kata.info/tetracycline-acne-pills.pdf ">tetracycline nystatin hydrocortisone mouthwash</a> "We have a long-running interest in tooth formation," Pei told ABC News. "We want to use somebody's own cells to generate a tooth." Pei added that if the cells came from somewhere else, they could be rejected by the host's body.