Anti-estrogen receptor rabbit monoclonal antibodies (SP1 and SP2 clones) provide “high sensitivity and specificity of the reaction, stronger immunostaining, shorter procedures times, and avoidance of antigenic retrieval methods.” Cano, G. et al. Diagn. Cytopathol. 29, 207–211 (2003)
The anti-estrogen receptor rabbit monoclonal antibody (EP1 clone) “can result in better interpretation of the results of the ER analysis.” Badve, S. et al. J. Clin. Pathol. 66, 1051–1057 (2013)