Please assess the completion status of the following clinical trial:

Trial Title: In Vivo Anatomy, Physiology, Mechanics and Function of the Lower Esophageal Sphincter

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:~Inclusion criteria for GERD patients are:~* Symptomatic heartburn~* Regurgitation~* Chest pain or water brash~Exclusion Criteria:~Exclusion criteria for normal volunteers include:~* Medications-Subjects on any medication which could effect the gastroesophageal junction high-pressure zone will be excluded, this includes use of antacids, H2 blockers, proton pump inhibitors, prokinetic agents, erythromycin type antibiotics and anticholinergics.~* GI symptoms, conditions and disorders~In addition exclusion criteria will include a history of:~* Esophagitis~* Gastrointestinal symptoms such as abdominal pain~* Heartburn~* Reflux~* Regurgitation~* Chest pain~* Difficulty swallowing~* Pain on swallowing~* Dysphagia~* Abdominal surgery involving the stomach or esophagus~* Nausea or vomiting~* Diabetes~* Scleroderma~* Esophageal motility disorders~* Non cardiac chest pain~* Achalasia and current pregnancy.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 75 Years
- Healthy Volunteers: t

Study Arms:
- Normal Control (Type: None): Normal control subjects are the participants with no history of GERD, no signs and symptoms of GERD
- GERD Patients (Type: None): GERD patients are those with history of GERD, signs and symptoms of GERD and selected signs and symptoms of GERD in the questionnaire.
- Barrett's patients (Type: None): Barrett's patients are those participants who in addition to all the qualities of GERD patients have long standing history of GERD and mucosal changes in the esophagus.

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