sentences:  Patti established the Phil Everly Memorial COPD Foundation in 2014.Don Everly claimed in a 2014 interview with "The Los Angeles Times" that he had given up smoking in the late 1960s and that Phil had stopped too but started again during their breakup and had continued until 2001.Don said that weak lungs ran in the family, as their father, Ike, had died of black lung disease.