Answer:
Standardization in immunohistochemistry (IHC) refers to the process of establishing consistent and reproducible protocols and procedures for performing IHC assays. It involves using consistent methods and parameters for sample preparation, staining protocols, and result interpretation to ensure that IHC results are reliable and comparable across different laboratories or experiments. Standardization helps to reduce variability and improve the accuracy and reproducibility of IHC results, making them more reliable for clinical and research purposes.