Fig. 1From: Evaluating the usefulness of considering the size and morphological type of type B2 vessel area based on Japan Esophageal Society classification in estimating tumor invasion depth in superficial esophageal squamous cell carcinomas: study protocol for a prospective observational study (Japan BEES study)Patient flow and analyses. CRT, chemoradiotherapy; JES, Japan Esophageal SocietyBack to article page