Please select the eligibility criteria that correspond to the clinical trial below.
Title: Uncut Roux-en-y Anastomosis Reduce Postoperative Complication and Improve Nutritional Status After Distal Gastrectomy
Brief Summary: The investigators intend to conduct multi-center randomized controlled study to find if Uncut Roux-en-Y anastomosis to the distal gastric cancer patients after radical D2 can reduce the long-term complications, affect the quality of life, and improve the prognosis, comparing to Billroth II anastomosis.


Options:
A: Inclusion Criteria:

* Clinical diagnosis of distal gastric cancer
* underwent laparoscopy-assisted distal gastrectomy

Exclusion Criteria:

* have simultaneously other cancer
* have severe systemic inflammatory disease ,serious illness such as diabetes, chronic lung diseases
* have upper gastrointestinal surgery
* can't bear the gastric tube
* the period is too late or the tumor is too large to carry on a laparoscopy assisted radical distal gastrectomy
B: Inclusion Criteria:

* Patients diagnosed with adenocarcinoma at the endoscopic biopsy
* Patients who are possible to be performed curative resection in imaging study
* Patients with tumor which not involved in pylorus and are located in mid or distal portion of the stomach
* Patients with informed consent
* Patients with three or less American Society Anesthesiology Score 3

Exclusion Criteria:

* Patients who are or become pregnant
* Patients with uncontrolled disease
* Patient s with synchronous other malignancy
* Patients participated in other clinical trial
C: Inclusion Criteria:

* Clinical diagnosis of distal gastric cancer
* underwent laparoscopy-assisted distal gastrectomy

Exclusion Criteria:

* have simultaneously other cancer
* have severe systemic inflammatory disease ,serious illness such as diabetes, chronic lung diseases
* have upper gastrointestinal surgery
* can't bear the gastric tube
* the period is too late or the tumor is too large to carry on a laparoscopy assisted radical distal gastrectomy
D: Inclusion Criteria:

1. pathological diagnosed as the gastric carcinoma, the possibility of removal by the surgeon and imaging physician assessment.
2. no previous history of other malignancies combined.
3. patients have signed informed consent;
4. aged 18 to 80 years old, male or female patients;
5. cardiopulmonary, liver and kidney function was normal, ECOG physical status score of 0 to 1 (see Appendix);
6. the clinician determine the patient does not need emergency surgery;

Exclusion Criteria:

1. pregnant or lactating women;
2. the liver, lung, bone, and other distant metastasis;
3. supraclavicular lymph nodes, pelvic or ovarian species, peritoneal dissemination, etc;
4. a large number of ascites, cachexia;
5. suffering from other serious diseases, including cardiovascular, respiratory, kidney, or liver disease, poorly controlled hypertension merger, diabetes patients;
6. or mental illness;
7. 4 weeks prior to enrollment participated or are participating in other clinical trials of patients;
8. had undergone surgery, and its influence has not been eliminated in the patient;
9. of the stomach or esophagus history of malignancy, including stromal tumor, sarcoma, lymphoma, carcinoid;
10. patients with active infection (infection causing fever above 38 ℃);
11. patients with poor compliance or researchers consider poor patient compliance;
12. There are other clinical researchers believe that the laboratory the patient should not participate in the trial.

Answer: D