Double contrast-enhanced ultrasound for the preoperative gross classification of gastric cancer: a comparison with multidetector computed tomography. - Ping He; Lan Zeng; Liying Miao; Tianli Wang; Juxiang Ye; Lingmei Meng; Heng Xue; Fan Zhang; Bo Zhao 012; Huiyu Ge (BMC Medical Imaging, 2022)