The association between protease inhibitors and anal cancer outcomes in veterans living with HIV treated with definitive chemoradiation: a retrospective study oleh Alison K. Yoder, David S. Lakomy, Yongquan Dong, Suchismita Raychaudhury, Kathryn Royse, Christine Hartman, Peter Richardson, Donna L. White, Jennifer R. Kramer, Lilie L. Lin, Elizabeth Chiao