Tan et al.39 conducted a more extensive study with a larger dataset (54 positive and 834 negative ALK fusion positive cases for training, 66 positive and 1,398 negative for testing) achieving an impressive 0.92 in their test set; however, their models were trained using demographic data, pathology reports, and serum tumor markers, not by the much more facile approach described herein, using only H&E stained slides. This evidence concerns the gene ALK and neoplasm.