Testing for bacterial collagenase is done with saliva

________________________ ________________________, in which a portion of the stomach protrudes upward into the mediastinal cavity, while not age-related per se, can have severe consequences for the elderly

Fill in the blank(s) with correct word

____________ wounds are almost always contaminated because they are caused by external forces and often occur in environments that are mildly or grossly contaminated

A. Trauma C. Autograft B. Cardiovascular D. Debridement