[18F]-HX4 PET/CT hypoxia in patients with squamous cell carcinoma of the head and neck treated with chemoradiotherapy: Prognostic results from two prospective trials oleh Sebastian Sanduleanu, Olga Hamming-Vrieze, Frederik W.R. Wesseling, Aniek J.G. Even, Frank J. Hoebers, Ann Hoeben, Wouter V. Vogel, Margot E.T. Tesselaar, Daniel Parvin, Harry Bartelink, Philippe Lambin