[Relationship between blood groups ABO and clinical features of duodenal ulcer].
D000017:ABO Blood-Group System; D001789:Blood Group Antigens; D004381:Duodenal Ulcer / Q000097:blood / Q000601:surgery; D005743:Gastrectomy; D006471:Gastrointestinal Hemorrhage; D006801:Humans
D000017:ABO Blood-Group System; D001789:Blood Group Antigens
Vztah mezi krevními skupinami ABO a klinickým obrazem dvanáctníkového vredu.