Kao-Ping Chua, assistant professor of pediatrics, testified Wednesday before the Health Subcommittee of the U.S. House Energy and Commerce Committee. Chua spoke in favor of a provision that would remove a loophole in the nation’s “orphan drug” law. The loophole has limited the availability of different forms of a key drug to treat opioid addiction, Chua said. Read his written testimony. (Photo by David Bluhm, Washington Office)