Prevalence of TMJ problems among orthognathic patients preoperative & postoperative

I need to write an article for British medical journal with 
abstract 
introduction 
materials and methods
results
discussion
conclusion 
and i like to have most of the reference from medical journal more than books and to be at least 12 -15 reference .
the table of my results will be attached and some draft that i did .i need good strong writing based on my results.and comparing it to others article .and it is for medical journal.