Fig. 2From: Increased heat shock protein 70 (Hsp70) serum levels and low NK cell counts after radiotherapy – potential markers for predicting breast cancer recurrence?Kinetics of free Hsp70 serum concentrations before RT (t1), after 30 Gy during RT (t2), at the end of RT (t3), and in the follow-up period (t4; 6 weeks after RT; t5, 6 months after RT; t6, 1 year after RT) in patients who remained disease-free (closed circles) or patients who developed recurrence or distant metastases (closed squares), as determined by the R&D (a) and lipHsp70 ELISA (b). The values between the two groups differed significantly at t3 (p = 0.03) and t4 (p = 0.007) using R&D ELISABack to article page