Please assess the completion status of the following clinical trial:

Trial Title: Defining the Clinical Utility of EBV Antibody Screening to Identify Individuals Susceptible to Nasopharyngeal Carcinoma (NPC) Within High-Risk, Multiplex NPC Families

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

Eligibility Criteria:
* INCLUSION CRITERIA:~The 2,394 unaffected family members who previously participated in the family study of nasopharyngeal carcinoma (NPC) in Taiwan between 1996 and 2004.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 99 Years
- Healthy Volunteers: f

Study Arms:
- cohort (Type: None): hospital based family cohort

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