Please assess the completion status of the following clinical trial:

Trial Title: CES in the Elderly With Generalized Anxiety Disorders

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

Eligibility Criteria:
Inclusion Criteria:~* Aged 60 to 85 years old~* Anxiety disorder confirmed by Mini-international neuropsychiatric interview (MINI)~* HAM-A score greater than 17 points~* HAM-D score lower than 17 points~* Mini-mental state examination score of 24 or more~* No psychiatric medication adjustment within 3 months.~Exclusion Criteria:~* Comorbid with another axis I psychiatric disorder, like schizophrenia, substance use disorder or other major mental illness screened by Mini-international neuropsychiatric interview (MINI)~* Contraindications for CES~* Implanted brain medical devices or mental in the head~* History of seizures~* History of intracranial neoplasm or surgery~* Severe head injuries~* Cerebrovascular diseases~* Arrhythmia or with pacemaker implantation~* Used to receive brain stimulation therapy.

- Gender: ALL
- Minimum Age: 60 Years
- Maximum Age: 85 Years
- Healthy Volunteers: f

Study Arms:
- Received CES intervention (Type: EXPERIMENTAL): CES with the frequency of 0.5 Hertz; current of 100\~600micro-ampere, for 60 minutes, everyday for 6 weeks, total 42 sessions intervention

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