CHICAGO (EGMN) - Human papillomavirus-related oropharynx cancer has different epidemiology, biology, and overall survival following sequential therapy - and is, therefore, a different disease from environmentally related oropharynx cancer, according to an analysis of 111 patients in the TAX 324 trial.The study of tumor HPV 16 status, survival, and demographics in the randomized phase III trial is the latest in a string of retrospective analyses to raise questions about whether therapies should be...