{Reference Type}: Letter {Title}: Spare the Knife When Retropharyngeal Lymph Nodes Are Present in Human Papillomavirus-Positive Oropharyngeal Cancer. {Author}: Woody NM; {Journal}: Int J Radiat Oncol Biol Phys {Volume}: 120 {Issue}: 1 {Year}: 2024 Sep 1 {Factor}: 8.013 {DOI}: 10.1016/j.ijrobp.2024.02.034