Please assess the completion status of the following clinical trial:

Trial Title: Biomarkers for Post-Transplant Lymphoproliferative Disorders in Children

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

Eligibility Criteria:
Inclusion Criteria:~* Subject and/or parent or legal guardian must be able to understand and provide informed consent/assent;~* Candidate for or recipient of: heart, liver, heart with liver, small intestine, liver with small intestine, or kidney; and~* Subject enrolled within 3 years of transplant.~Exclusion Criteria:~* Previous diagnosis of PTLD;~* Transplant recipients of lung alone, or in combination with an eligible organ type;~* Pancreas transplantation with the exception of 'en bloc' transplant in combined liver and small intestine multivisceral transplantation;~* Any combination other than listed in inclusion criteria;~* History of any previous solid organ, stem cell, or bone marrow transplantation;~* Inability or unwillingness of the legal guardian and/or the subject to comply with the study protocol.

- Gender: ALL
- Minimum Age: None
- Maximum Age: 21 Years
- Healthy Volunteers: f

Study Arms:
- Subjects Enrolled Pre-Transplant (Type: None): Subjects (N=approximately 357) Enrolled Pre-Transplant~* Subjects with evidence of EBV infection prior to transplant~* Subjects without evidence of EBV infection prior to transplant, who are at risk of developing EBV infection after transplant
- Subjects Enrolled Post-Transplant (Type: None): Subjects (N=approximately 588) Enrolled 3 Yrs Post-Transplant~* Subjects with evidence of EBV infection prior to transplant~* Subjects without evidence of EBV infection prior to transplant, who are at risk of developing EBV infection after transplant

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