"doesn't help with the cause of perforation"
"This is a summary article; we do not have a more in-depth reference article."
"indications (acute)concern for pneumoperitoneum, e.g. bowel perforation"
"important pathologypneumoperitoneum"
"benefits"
"limitations"
"procedure"
Expected headings
"This is a basic article for medical students and other non-radiologists"
"Similar tests"
"This is a summary article; we do not have a more in-depth reference article."