Tadalafil and Pembrolizumab in Recurrent or Metastatic Head and Neck Cancer
University of California, San Diego
University of California, San Diego
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Sun Yat-sen University
Hospital Israelita Albert Einstein
Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University
Peking University
The Central Hospital of Lishui City
NYU Langone Health
Women's Hospital School Of Medicine Zhejiang University
Tianjin Medical University Cancer Institute and Hospital
Big Ten Cancer Research Consortium
Tianjin Medical University Cancer Institute and Hospital