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["Table 3. Time difference between diagnosis of progressive and recurrent events and cfDNA increase in NB patients"]
["Time difference between abnormally increasing cfDNA levels and diagnosis of progression and recurrence in NB patients"]
["Patients with cfDNA level >=29 ng/ml (n)",19]
["Time difference (Months)","-3<= increase time <=0"]
["    Median",0]
["    Average",-0.55]
["Total patients (n)",19]
["    Time difference = 0 (n)","10 (52.6%)"]
["    Time difference ＜0 (n)","9 (47.4%)"]

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