Endoscopic diagnosis and follow-up of duodenal ulcer.
D000704:Analysis of Variance; D003936:Diagnosis, Computer-Assisted; D004381:Duodenal Ulcer / Q000150:complications / Q000175:diagnosis*; D004724:Endoscopy; D004941:Esophagitis / Q000150:complications; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged