[Concimitance of gastroduodenal ulcers & gallbladder diseases: statistical study].
D005705:Gallbladder Diseases; D006801:Humans; D010437:Peptic Ulcer / Q000150:complications*
GALLBLADDER/diseases; PEPTIC ULCER/complications
Concomitancia de la ulcera gastroduodenal y las colecistopatias; estudio estadístico.