sentences:  Phil Everly died at Providence Saint Joseph Medical Center in Burbank, California, on January 3, 2014, 16 days before his 75th birthday, of lung disease.Phil's widow Patti blamed her husband's death on his smoking habit, which caused him to develop chronic obstructive pulmonary disease, and recounted Phil's spending his final years having to carry oxygen tanks with him wherever he went and taking 20 different types of medications per day.Phil's last public appearance was in 2011, at Buddy Holly's induction to Hollywood Boulevard's Star Walk of Fame, and he was then struggling to catch his breath as he addressed the crowd.