Table 4.

The Correlation Between the Number of Positive CTC Before Treatment and Clinical Response After Treatment and During Follow-Up

Clinical Response	No. of Patients		P
CTC-Negative	CTC-Positive
After treatment
CR	13	10	0.17
Non-CR	10	17
First follow-upa
CR	13	17	0.64
Non-CR	10	10
Second follow-upb
CR	17	18	0.58
Non-CR	6	9

Notes: ^aThree months after the treatment; ^bthree years after the treatment.

Abbreviations: CR, complete response; CTC, circulating tumor cell.