How to go about writing a medical manuscript?

I am pursuing my research in epilepsy that has been enjoyable but still a challenge. I understand that to leave a mark, educational qualifications are not as important as research papers are. In light of this notion, I want to prepare a manuscript on my work and get it published in a reputed journal. My difficulty is that I have never written a manuscript before, which is why I need help for writing one.
How should I prepare a medical manuscript and what process must I follow of getting it published?

Posted in: Research