Guan, Jian When the Benign Pneumatosis Intestinalis Becomes No Longer Benign: A Rare Case of Bowel Perforation in a Patient with Systemic Sclerosis. [electronic resource] - Case reports in gastrointestinal medicine 2018 - 5124145 p. digital Publication Type: Case Reports; Journal Article ISSN: 2090-6528 Standard No.: 10.1155/2018/5124145 doi