PRACE DOKTORSKIE - FINLANDIA 301,678 SEIRO JAAKKO Open biliary tract surgery on 2023 patients based on personal experience : a clinical study : academic dissertation / by Jaakko Seiro ; from the Deaconess Hospital of Helsinki, Helsinki, and Vantaa Local Hospit - Helsinki : [The Finnish Surgical Society] 1996. - 121 s. : wykr. ; 25 cm (Annales Chirurgiae et Gynaecologiae, ISSN 0355-9521 ; vol 85, suppl.212)