Proposal for a Two-Tier Re-classification of Stage IV/M1 domain of Renal Cell Carcinoma into M1 (“Oligometastatic”) and M2 (“Polymetastatic”) subdomains: Analysis of the Registry for Metastatic Renal Cell Carcinoma (REMARCC)Margaret Meagher, Ithaar Derweesh, Andrea Minervini et al.|Frontiers in Oncology|2023Cited by 8