Please assess the completion status of the following clinical trial:

Trial Title: An fMRI Study of Attention and Effort After Concussion

Study Design Characteristics:
- Allocation: None
- Intervention Model: None
- Observational Model: CASE_CONTROL
- Primary Purpose: None
- Time Perspective: CROSS_SECTIONAL
- Masking: None
- Phase: None
- Number of Arms: None

Eligibility Criteria:
Inclusion Criteria:~* Mild TBI (based on criteria of the American Congress of Rehabilitation Medicine)~* Aged 18 to 60~* History of non-penetrating head injury~* Obtaining medical assistance (e.g., personal physician, Emergency Room) within 24 hours post-injury~Exclusion Criteria:~* No prior history of prior post-concussion syndrome (i.e, uncomplicated mild TBI)~* Moderate to severe TBI~* Substance dependence~* Learning disorder~* Attention-deficit disorder~* Mental retardation~* Severe psychiatric disorder requiring hospitalization~* Previous central nervous system disease~* Absence of neurosurgery~* No evidence of alcohol/drug use related to the injury

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 60 Years
- Healthy Volunteers: t

Based on this trial design, predict the completion outcome and termination type (if applicable).