Please assess the completion status of the following clinical trial:

Trial Title: Neuroimaging Attentional Impairment During Abstinence

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: SINGLE_GROUP
- Observational Model: None
- Primary Purpose: BASIC_SCIENCE
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 1.0

Eligibility Criteria:
Inclusion Criteria:~1. smoked an average of 10 cigarettes per day for two years~2. a brand that delivers (by Federal Trade Commission rated yields) at least 0.5 mg nicotine~3. have an expired air carbon monoxide reading of at least 10 ppm.~4. be in general good health~5. Participants with controlled medical conditions (e.g., hypertension) will be considered if treatment is not thought to interfere with fMRI measures or potentially ameliorate smoking withdrawal symptoms~Exclusion Criteria:~1. Individuals with a major medical condition that would make participation unsafe (e.g., have pacemaker or other metallic implant),~2. uncomfortable (e.g., chronic pain),~3. confound results (e.g., psychiatric condition)~4. suffering from claustrophobia; abnormally afraid of closed-in places will be excluded from participation,~5. Current alcohol or drug abuse,~6. smokeless tobacco use, or use of nicotine replacement therapy or other smoking cessation treatment will also be a basis for exclusion and evaluated via a urine test.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 50 Years
- Healthy Volunteers: t

Study Arms:
- Smokers not interested in quitting smoking (Type: EXPERIMENTAL): Smokers were scanned 24 hours after quitting smoking, and scanned after smoking as usual.

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