Medicine

Kyle Graves, in recovery for opioid addition, sits in the home he shares with his mother in Franklin, Tenn., June 6, 2017. Graves' troubles began more than a decade ago when he was prescribed the opioid oxycodone for degenerative arthritis in his hips, shoulders, feet and back.(AP Photo / David Goldman)

In this photo taken Monday, Nov. 13, 2017, Brian Madeux, who has a metabolic disease called Hunter syndrome, looks up at nurse practitioner Jacqueline Madde while receiving the first human gene editing therapy at the UCSF Benioff Children's Hospital in Oakland, Calif., Nov. 13, 2017. To cut his DNA at a precise spot, Madeux was receiving billions of copies of a corrective gene and a genetic tool through an IV. (AP Photo / Eric Risberg)

Neurologist Dr. Ricardo Cruciani in Philadelphia, Nov. 21, 2017, after pleading guilty, to misdemeanor charges that he groped women at a clinic. (AP Photo / Matt Rourke)

Lilly Ross, left, shows her family photos to Andy Sandness during their meeting at the Mayo Clinic, Oct. 27, 2017, in Rochester, Minn. Sixteen months after transplant surgery gave Sandness the face that once belonged to Ross' husband, Calen "Rudy" Ross, he met the woman who had agreed to donate her high school sweetheart's face to a man who lived nearly a decade without one. (AP Photo / Charlie Neibergall)

Police officers with the Forensics Unit leave Bronx Lebanon Hospital in New York after a gunman opened fire, killing a doctor and wounding six others before taking his own life, June 30, 2017. The gunman, identified as Dr. Henry Bello, was forced out of a hospital two years earlier over sexual harassment allegations. He returned with an assault rifle hidden beneath his lab coat law enforcement officials said. (AP Photo/Mary Altaffer)

Face transplant recipient Andy Sandness attends a speech therapy appointment at Mayo Clinic in Rochester, Minn., Jan. 24, 2017. He wasn't allowed to see himself immediately after the surgery Ð his room mirror and cell phone were removed. When he finally did see his face after three weeks, he was overwhelmed. "Once you lose something that you've had forever, you know what it's like not to have it. ... And once you get a second chance to have it back, you never forget it." Just having a nose and mouth are blessings, Sandness says. "The looks are a bonus." (AP Photo/Charlie Neibergall)