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. 2020 Jul 14;15(7):e0235904. doi: 10.1371/journal.pone.0235904

Fig 1. Patient selection for specimen analysis by LC-MS/MS.

Fig 1

Study participants were selected from 355 pancreatic cancer patients who underwent pancreatectomy between 2005 and 2015 at Tohoku University Hospital. All patients in LN+ group were selected from patients with ≥4 LN metastases.