并列题名：BLI and pathological contrast atlas of early upper gastrointestinal cancer BLI and pathological contrast atlas of early upper gastrointestinal cancer 并列题名：Blue light imaging and pathological contrast atlas of early upper gastrointestinal cancer Blue light imaging and pathological contrast atlas of early upper gastrointestinal cancer 并列题名：Case analysis of endoscopic diagnosis and treatment of early upper gastrointestinal cancer Standard surgical techniques for upper gastrointestinal cancer Case analysis of endoscopic diagnosis and treatment of early upper gastrointestinal cancer Endoscopic diagnosis and treatment of early gastrointestinal cancer