Researched articles on treatments for a specific health condition

I'm looking for someone to write a number of 600 word articles on various aspects of treatment and maintenance for a specific health condition. It will encompass research but I know the topics I want to cover so can send articles as research material. Articles will need to be well researched though for any updates to treatment and to write in where the material is sourced from. Also SEO optimised. This is for a new website and could mean regular work. Writer must have examples of previous work, ideally with a health angle, and write with a sharp individual voice.