Please assess the completion status of the following clinical trial:

Trial Title: Von Hippel-Lindau Disease Genetic Epidemiology Study

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:~Eligible patient volunteers are those who:~1. have been enrolled in protocol 89-C-0086;~2. are a member of a family in which at least one person has been diagnosed with VHL at NIH; and~3. are at least 13 years of age.~Patient volunteers seen under protocol 89-C-0086 who have been diagnosed with VHL, are at risk of VHL, or are unaffected are all eligible for study.~Additional families screened throughout the field period and meeting all eligibility criteria will also be able to participate.

- Gender: ALL
- Minimum Age: 13 Years
- Maximum Age: 100 Years
- Healthy Volunteers: f

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