The best collateral source may be another service member with whom the patient has served in addition to a family member. Evaluate explicitly post-traumatic stress disorder (PTSD), chronic pain, sleep disorders, balance, and hearing loss, as these are common in military personnel with concussion, especially blast-related injuries. Maintain confidentiality. If the patient has been using drugs and/or alcohol, it may be wise to refer them for rehabilitation discretely, since active duty military personnel do not have the same privacy protections that civilians have, and this can jeopardize their future careers. Return-to-duty decision-making is best done in collaboration with military physicians and occupational therapists. Refer to community resources specifically dedicated to wounded warriors.