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A writer's duties are what the writer's employer (or publisher) requires. The writer's responsibilities should be made clear by the one who has hired him/her. A writer who does not write for another party should set their own goals for their work.
return the discussion to a general level
When you are making and observation.
It is proof-reading.
The more you know about medicine, and the more you know about writing, the better you will be as a medical writer.
In essay writing, there should be an introductory note, followed by subject matter and conclusion respectively.
In the thesis apex
Brainstorming
Have a friend read it and give feedback
Actually, that is more a weakness of social science writing, though science writer are not subjected to stringent peer review.
If you're going to be a writer you need to learn how to make your own conclusions. The conclusion comes out of what the rest of the story is -- you don't make that part up first usually. Finish your story and you should have a good conclusion in mind when you get to the point of needing one. What do you think would logically happen if someone broke into your house in real life?