Answer:
It is a concussion
Explanation:
it is a type of brain trauma that is really easy to get and stays with you for a long period of time .
Bone marrow contains blood I think, so it would be considered a donor procedure since you're donating blood.
Public safety regulations protect workers because they provide regulations about various aspects of public safety that increase the safety of different job-related possible occurences which could influence how workers perform their job (mostly in terms of their own safety).
Patient non-compliance
he did not comply with the prescribed amount of antibiotics.
