Topic: somatic symptom disorder

this is a two part job, this is part one. i need 2 or 3 Scholarly Research Article that is related to this topic. the guideline for the job is uploaded and an example of scholarly research article is also uploaded. the article should have an 

abstract, objective, methods, statistic, results, conclusion, reference. beacuse you will use that same article to do the part 2 of the job.