A systematic review of treating recurrent head and neck cancer: a reintroduction of brachytherapy with or without surgery - Rodin, Julianna; Bar-Ad, Voichita; Cognetti, David; Curry, Joseph; Johnson, Jennifer; Zender, Chad; Doyle, Laura; Kutler, David; Leiby, Benjamin; Keane, William; Luginbuhl, Adam (Journal of Contemporary Brachytherapy, 2018)