Validation Study of the International Association for the Study of Lung Cancer Histologic Grading System of Invasive Lung Adenocarcinoma. Published: April 24, 2021. Abstract Introduction A histologic grading system for invasive lung adenocarcinoma (ADC) has been proposed by the International Association for the Study of Lung Cancer (IASLC) Pathology Committee in June 2020. This studySigueSigue leyendo «Estudio de validación para el sistema de grados en el Adenocarcinoma de Pulmón.»