Talk about why PTSD (Post-traumatic stress disorder) and SUD (substance use disorder) need to be treated together. Why a systematic review would be helpful (study rationale)

Behavioral Treatments for SUDs in people with comorbid PTSD

1.Talk about why PTSD (Post-traumatic stress disorder) and SUD (substance use disorder) need to be treated together.
2.Types of behavioral treatments available for PTSD and SUD (treatments used to treat BOTH disorders.
3.Why a systematic review would be helpful (study rationale)