Ultrasound, computed tomography, or the combination for the detection of supraclavicular lymph nodes in patients with esophageal or gastric cardia cancer: A comparative study

Evelyn P.M. Van Vliet, Aad Van Der Lugt, Ernst J. Kuipers, Hugo W. Tilanus, Ate Van Der Gaast, John J. Hermans, Peter D. Siersema^*

^*Corresponding author for this work