Affiliation: | 1. Endocrine Surgery Unit, Department of Surgery, Hospital Universitari del Mar, Barcelona, Spain 4. General Surgery Department, Hospital de La Princesa, C/Diego de León 62, 28006, Madrid, Spain 2. Departament de Ciències Eperimentals i de la Salut, Hospital Universitari del Mar, Barcelona, Spain 3. Department of Pathology, Hospital Universitari del Mar, Barcelona, Spain
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