Please assess the completion status of the following clinical trial:

Trial Title: A Study to Identify and Characterise Bacteria Causing Chronic Cough Among Children in United Kingdom

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:~* Subjects who the investigator believes that parent(s)/ legally acceptable representative can and will comply with the requirements of the protocol.~* A male or female child between, and including, six to 72 months of age at the time of enrolment.~* Written informed consent obtained from the parent(s)/ legally acceptable representative of the subject.~* No antibiotic therapy within four weeks prior to the visit.~* No cystic fibrosis or known major immunodeficiency such as agammaglobulinaemia, T cell deficiency or Human Immunodeficiency Virus / Acquired Immune Deficiency Syndrome.~* No documented evidence or suspicion of gastroesophageal reflux disease.~* No evidence of an upper viral respiratory infection four weeks prior to the visit.~In addition, all subjects regarded as 'cases' must satisfy all the following criteria at study entry:~* Persistent cough greater than eight weeks.~* No response to five-day prednisolone treatment.~* Chest X-ray showing no evidence of a lobar pneumonia or gross structural abnormality.~In addition, all subjects regarded as 'controls' must satisfy the following criteria at study entry:~* No respiratory symptoms four weeks prior to the visit.~* No documented evidence or suspicion of lung disease upon physical examination.~Exclusion Criteria:~* Concurrently participating in another study, at any time during the study period, in which the subject has been or will be exposed to an investigational or a non-investigational product.~* Use of any investigational or non-registered product within 30 days prior to study procedures, or planned use during the study period.~* Any confirmed or suspected immunosuppressive or immunodeficient condition, based on medical history and physical examination.~* Child in care.

- Gender: ALL
- Minimum Age: 6 Months
- Maximum Age: 72 Months
- Healthy Volunteers: f

Study Arms:
- Cases (Type: None): Subjects diagnosed with chronic cough who are undergoing general anaesthesia and bronchoscopy/BAL as part of the diagnostic process for chronic cough.
- Controls (Type: None): Subjects without respiratory symptoms who are undergoing general anaesthesia for elective surgery or endoscopy of non-respiratory-related conditions.

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