Fig. 4

Study flow. The study was performed in multiple institutions, including Guangdong (Sun Yat-sen University Cancer Center), Beijing (National Cancer Center), Zhengzhou (the Affiliated Cancer Hospital of Zhengzhou University), and Anyang (the Anyang Cancer Hospital). pCR pathological complete response, <pCR less than pCR, qPCR real-time quantitative polymerase chain reaction, FLDA Fisherās linear discriminant analysis