Mapping the complexity and diversity of tertiary lymphoid structures in primary and peritoneal metastatic gastric cancer ======================================================================================================================== * Tessa S Groen-van Schooten * Rosalia Franco Fernandez * Nicole C T van Grieken * Emma N Bos * Jens Seidel * Job Saris * Carolina Martínez-Ciarpaglini * Tania C Fleitas * Daniela S Thommen * Tanja D de Gruijl * Joep Grootjans * Sarah Derks