title: Retrospective studies and pancreatic adenocarcinoma: how far can we backdate?
authors.affiliation: HPB Surgery, Hospital Xeral, Vigo, Pontevedra, Spain f.ausania@googlemail.com.
authors.forename: Fabio
authors.initials: F
authors.lastname: Ausania
mesh_terms: D000230:Adenocarcinoma / Q000601:surgery*; D021441:Carcinoma, Pancreatic Ductal / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D010180:Pancreatectomy / Q000379:methods*; D010190:Pancreatic Neoplasms / Q000601:surgery*; D016577:Pancreaticoduodenectomy / Q000379:methods*; D011169:Portal Vein / Q000601:surgery*