He underwent successful surgery five days later. She immediately underwent surgery and had a hysterectomy. She underwent surgery and had the tumor successfully removed. He underwent surgery later that year. In 1983, Khambatta underwent coronary bypass surgery. In 1983, she underwent coronary bypass surgery. Davis previously underwent heart surgery in 1996. That same year, he underwent heart bypass surgery. In 1990, she underwent breast reduction surgery. He subsequently underwent season-ending surgery. A day later, George successfully underwent surgery. He underwent triple bypass surgery in 1996 and quit smoking. Halford underwent back surgery in 2013 and umbilical hernia surgery in 2014. In July, he underwent groin surgery. In late January, he underwent surgery on his elbow.