Please assess the completion status of the following clinical trial:

Trial Title: Effect of Smoking, Abstention and Nicotine Replacement Therapy on Wound Healing

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: BASIC_SCIENCE
- Time Perspective: None
- Masking: QUADRUPLE
- Phase: None
- Number of Arms: 4.0

Eligibility Criteria:
Inclusion Criteria:~* daily smokers smoking between 15-25 cigarettes per day and never smokers~Exclusion Criteria:~* chronic medical disease~* atopic dermatitis or other skin disease~* pregnancy~* menopause~* allergy to dressings or patches~* current or recent medication with corticosteroids or NSAID

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 40 Years
- Healthy Volunteers: t

Study Arms:
- continuous smoking (Type: ACTIVE_COMPARATOR): subjects smoke 20 cigarettes per day
- smoking cessation and NRT (Type: ACTIVE_COMPARATOR): subjects quit smoking and use transdermal nicotine patch
- smoking cessation and placebo patch (Type: PLACEBO_COMPARATOR): subjects quit smoking and use placebo patch
- never smokers (Type: NO_INTERVENTION): subjects being never smokers and who refrain from smoking

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