Carcinoma, Renal Cell 2 Humans 2 Retrospective Studies 2 axitinib human 2 renal cell carcinoma 2 retrospective study 2 Administration, Oral 1 Aged 1 Aged, 80 and over 1 Antibodies, Monoclonal, Humanized 1 Antineoplastic Agents 1 Article 1 Axitinib 1 China 1 Databases, Factual 1 Female 1 IMDC classification 1 Kidney Neoplasms 1 Male 1 Medicare 1 Medication Adherence 1 Middle Aged 1 PD-1 1 Practice Patterns, Physicians' 1 United States 1 VEGFR failure 1 abiraterone 1 aged 1 antineoplastic agent 1