Methodological approach to optimize a step-by-step deterministic linkage of SNDS data with a clinical database (FREGAT) of gastric/gastroesophageal junction adenocarcinoma in France: Pitfalls and learnings. - Laborey, Magali; Lajoinie, Audrey; Freilich, Jonatan; Samalin, Emmanuelle; Bouché, Olivier; Piessen, Guillaume; Stoelzel, Matthias; Chilelli, Andrew (PLoS ONE, 2025)