S100A1 and ovarian serous carcinoma: In this study, we used TMAs of ovarian serous carcinomas stained with an antibody directed against S100A1 to determine the ability of commercially available software algorithms (Genie Histology Pattern Recognition software suite including Genie Training v1 and Genie Classifier v1, and Color Deconvolution v9, Aperio Technologies, Vista, CA, USA) to replicate results obtained solely through visual inspection by a pathologist.