has input has result has context liver carcinogenesis dependent process hepatocarcinogenesis [toxic course] tumorigenesis [hepatocarcinogenesis] telomerase reverse transcriptase gene mutation [hepatocarcinogenesis] PMID:31439937 Telomerase reverse transcriptase gene mutation is a subtype of changing an operand: A process that changes the nucleotide sequence of Telomerase reverse transcriptase gene randomly and permanently. This entity is a specific course-dependent process. This process can constitute the course of hepatocarcinogenesis. Telomerase reverse transcriptase gene mutation TERT (canonical) [hepatocarcinogenesis]