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. 2015 Jun 26;10(6):e0130345. doi: 10.1371/journal.pone.0130345

Fig 1. Flow chart of patient enrollment and exclusion.

Fig 1

There were 4527 newly diagnosed CRC patients in our institution, including 1139 stage IV CRC with distal metastases. Only 3388 patients without distal metastases were selected and divided into the groups with or without visible PALNs. Four hundred and nine patients were identified as having visible PALNs without distal metastases.