CHRONIC DUODENAL ULCER WITH ANKYLOSING SPONDYLITIS.
D003452:Cryosurgery; D004381:Duodenal Ulcer; D005743:Gastrectomy; D010439:Peptic Ulcer Perforation; D013166:Spondylitis; D013167:Spondylitis, Ankylosing; D013270:Stomach
CRYOGENIC SURGERY; DUODENAL ULCER; GASTRECTOMY; PEPTIC ULCER PERFORATION; SPONDYLITIS, ANKYLOSING; STOMACH