ASO Author Reflections: A Novel Combination Index of Sialyl-Lewis Antigen-Related Tumor Markers Enhances Predictive Significance in Patients with a Modest Radiological Response to Neoadjuvant Treatment for Pancreatic Cancer. - Miyahara S; Takahashi H; Akita H; Sasaki K; Mukai Y; Iwagami Y; Hasegawa S; Yamada D; Tomimaru Y; Noda T; Wada H; Kobayashi S; et al. (Annals of surgical oncology, 2024)