ESR1 and neoplasm: Report-based information emphasized text details such as tumor description in radiology reports (e.g., “indruk van enkele uitlopers vanuit een massa richting de huid die eveneens gering verdikt imponeert”/“impression of a few extensions from a mass towards the skin that also appears slightly thickened”), tumor receptor status in pathology reports (e.g., “percentage oestrogeen receptor positieve tumorcellen”/“percentage of estrogen receptor positive tumor cells”), and the tumor stage in medical records (e.g., “ct2n2”).