Please assess the completion status of the following clinical trial:

Trial Title: Quality of Life After Interventional Thyroid Treatment

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

Eligibility Criteria:
Inclusion Criteria:~* Clinical diagnosis of a thyroid disease requiring radioiodine treatment~* Clinical diagnosis of a thyroid disease requiring follow-up but no ablative treatment (controls)~* Clinical diagnosis of a thyroid disease requiring surgery stopped recruiting~Exclusion Criteria:~* paediatric patients~* interfering comorbidity~* non-thyroidal illness~* pregnancy~* psychiatric disease~* severe psychological disorder~* lack of consent

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- surgery (withdrawn, not continuing recruiting) (Type: None): thyroid patients receiving replacement treatment with levothyroxine (LT4) after thyroidectomy
- radioiodine (Type: None): thyroid patients receiving replacement treatment with levothyroxine (LT4) following radioiodine treatment
- control (Type: None): thyroid patients followed without surgery or radioiodine treatment

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