On-treatment immune prognostic score for patients with relapsed and/or metastatic head and neck squamous cell carcinoma treated with immunotherapy ================================================================================================================================================== * Pablo Nenclares * Lucinda Gunn * Heba Soliman * Mateo Bover * Amy Trinh * Isla Leslie * Kee Howe Wong * Alan Melcher * Kate Newbold * Chris M Nutting * Derfel ap Dafydd * Shreerang A Bhide * Kevin Harrington