Ulcer perforat - simptome, diagnostic și tratament - BeHealthy
Double‐wall sign because of intestinal perforation - Yamaguchi - 2022 - Journal of General and Family Medicine - Wiley Online Library
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Diagnosis of Remnant Gastric Ulcer Perforation After RYGB is Challenging, Peritonitis without Pneumoperitoneum: A case report. Presented by Dr. 李卓勳 / SCOTT. - ppt download
Spontaneous pneumoperitoneum with duodenal diverticulosis in an elderly patient: a case report | Surgical Case Reports | Full Text