H2 antagonist and omeprazole nonresponders.
Savarino
V
V
Mela
G S
GS
Vigneri
S
S
Celle
G
G
D004381:Duodenal Ulcer / Q000188:drug therapy*; D005260:Female; D006635:Histamine H2 Antagonists / Q000627:therapeutic use*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009853:Omeprazole / Q000627:therapeutic use*
D006635:Histamine H2 Antagonists; D009853:Omeprazole