Please assess the completion status of the following clinical trial:

Trial Title: Co-culture and Advanced Maternal Age in PGS Program

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

Eligibility Criteria:
Inclusion Criteria:~* Advanced maternal age (\>39) undergoing PGS cycle~Exclusion Criteria:~* Other PGS indication~* Altered karyotype

- Gender: FEMALE
- Minimum Age: 40 Years
- Maximum Age: 47 Years
- Healthy Volunteers: f

Study Arms:
- Control Group (Type: None): sequential culture system
- Co-culture system (Type: None): None

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