Arthritis, Rheumatoid; Uterine Cervical Neoplasms; Sarcoma, Kaposi; Melanoma; Endometrial Neoplasms; Diagnostic agents; Carcinoma, Squamous Cell; Colorectal Neoplasms; Breast Neoplasms; Central Nervous System Neoplasms; Liver Neoplasms; Colonic Neoplasms; Anus Neoplasms; Squamous Cell Carcinoma of Head and Neck; Rectal Neoplasms; Metabolic Dysfunction-Associated Steatotic Liver Disease; Head and Neck Neoplasms; Solid tumours; HIV Infections