Pain-Induced Pulsograph Changes in Patients with Primary Dysmenorrhea: A Pilot Study

Figure 6

Changes in normalized-based time parameters at , , , and . Notes: (a) was changes in t1′, t2′, and t3′; (b) was changes in t4′ and t(d)′. , , and , compared with ; , , and , compared with .

(a)

(b)