; (iii) elicit the positive and negative outcomes of cannabis use for covered veterans through semi-structured interviews; (iv) estimate current and future health system needs to address positive and negative outcomes of cannabis use for covered veterans; (v) include a qualitative, open-ended survey provided to covered veterans who have sought care from the Department for chronic pain or post-traumatic stress disorder during the five-year period preceding the survey; and (vi) include an assessment of— (I) all records within the Veterans Health Administration for covered veterans participating in the study