"post-instrumentation of the bowel e.g. endoscopy, surgery"
Line 13:5·Only use medical adjectival hyphens where the letters at the end and start of the compound word are the same, e.g. post-transplant. In this case, don't use the hyphen: 'post-instrumentation'.
Inline EG
suggestion
"drugs such as steroids, chemotherapy (e.g. bevacizumab)"
Line 16:42·Consider replacing a bracketed e.g. with an inline e.g. after a comma.