Please assess the completion status of the following clinical trial:

Trial Title: Effects of Electronic Cigarettes on Nicotine Concentrations

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: CROSSOVER
- Observational Model: None
- Primary Purpose: BASIC_SCIENCE
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Smoking 10 cigarettes daily~* Agree to abstain from smoking and use electronic cigarettes for 2 weeks~Exclusion Criteria:~* Unstable medical or psychiatric disorders as determined by the principal investigator~* Pregnancy~* Known hypersensitivity to nicotine or propylene glycol or menthol~* Recent M. I. or stroke~* Uncontrolled hypertension (BP.\>160/100)~* Insulin dependent diabetes~* Known COPD or asthma~* Alcohol or other drug abuse or dependence

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 55 Years
- Healthy Volunteers: t

Study Arms:
- Tobacco Flavor/ Tobacco & Menthol Flavor (Type: OTHER): Subjects randomized to Tobacco Flavor group 7-10 days, then crossed over to Tobacco and Menthol Flavor for 7-10 days.~Nicotine with Tobacco Flavor and Tobacco \& Menthol Flavor (18mg/mL nicotine)
- Tobacco & Menthol Flavor/Tobacco Flavor (Type: OTHER): Subjects randomized to Tobacco and Menthol Flavor for 7-10 days,then crossed over to Tobacco Flavor for 7-10 days.~Nicotine with Tobacco Flavor and Tobacco \& Menthol Flavor (18mg/mL nicotine)

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