ENTPD1 and ovarian serous adenocarcinoma: To check for a possible correlation between CD39 and CD73 expression and survival in ovarian cancer patients, a web-based (http://kmplot.com/analysis/index.php?p=service&cancer=ovar) [42] Kaplan-Meier analysis including 347 patients with stage 3 and 4 (high-grade) serous ovarian cancer was performed.