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Nomogram and overall survival nomogram calibration curves. (a) Nomogram for prediction of three‐ and five‐year overall survival of patients with LCC. Calibration plots of the nomogram prediction of (b) Three‐year; and (c) Five‐year overall survival. The blue line represents the equality of the observed and predicted probability. C, chemotherapy; L, lower lobe; M, middle lobe; NT, no therapy; O, others; R, radiotherapy; S, surgery; U, upper lobe.
