Differential Diagnosis of Solitary Pulmonary Nodules in Postoperative Pancreatic Cancer Patients Using KRAS Gene Mutation Analysis. - Kanzaki R; Chikaraishi H; Samejima H; Kobayashi M; Horiguchi J; Maniwa T; Susaki Y; Akita H; Gotoh K; Honma K; Kukita Y; Okami J (Annals of surgical oncology, 2026)