Proof of Efficacy and Safety of Activated NK Cell Immunotherapy (ANK Therapy) for Various Types of Cancer, and Investigation into The Possibility That PD-L1 Is Useful as A Biomarker for Predicting Efficacy
1. Introduction Activated natural killer cell immunotherapy (ANK therapy) is a treatment in which NK cells are extracted from the patient’s own blood, expanded, activated, and then returned to the body,
