Gabapentin, Methadone, and Oxycodone With or Without Venlafaxine Hydrochloride in Managing Pain in Participants With Stage II-IV Squamous Cell Head and Neck Cancer Undergoing Chemoradiation Therapy
Roswell Park Cancer Institute
Roswell Park Cancer Institute
Henan Provincial People's Hospital
Peking University First Hospital
The First Affiliated Hospital with Nanjing Medical University
Duke University
University of Kansas Medical Center
Institut du Cancer de Montpellier - Val d'Aurelle
Zhejiang Cancer Hospital
Roswell Park Cancer Institute
Medical University of Lublin
University of Alabama at Birmingham
Taiwan Mundipharma Pharmaceuticals Ltd.
Taiwan Mundipharma Pharmaceuticals Ltd.
Mundipharma (China) Pharmaceutical Co. Ltd
University of Southern California
Mundipharma Korea Ltd
Mundipharma Research GmbH & Co KG
Affiliated Cancer Hospital & Institute of Guangzhou Medical University
Mundipharma (China) Pharmaceutical Co. Ltd
Mundipharma Korea Ltd
Mundipharma (China) Pharmaceutical Co. Ltd
Mundipharma Korea Ltd
Mundipharma Research GmbH & Co KG
Mundipharma Korea Ltd
Mario Negri Institute for Pharmacological Research
Mario Negri Institute for Pharmacological Research
Mundipharma (China) Pharmaceutical Co. Ltd
National Cancer Institute (NCI)
Napp Pharmaceuticals Limited
Associazione Progetto Oncologia UMAN.A