Is There a Limitation of RECIST Criteria in Prediction of Pathological Response, in Head and Neck Cancers, to Postinduction Chemotherapy?

Figure 2

Patient percepted decline in tumor swelling (primary tumor and not nodal). On 𝑥-axis are the individual patients and on 𝑦-axis is the tumor decline in percentage. Please note that if the tumor has decreased in size it has been charted along the negative values on 𝑦-axis.