Figure 1. Establishment and verifications of the cell training set in AEGJ. (A) Example images of the three classes used in the classifier: cancer cells, lymphocytes, and stromal cells. (B) Cell proportions obtained by automated image analysis were compared to pathologists’ counts for a total of 10,000 single cells in a representative set of 20 tissue samples within AEGJ. (C) TILs proportions versus manual grading for AEGJ TIL infiltration in random one-third samples.