There are multiple definitions:

1. end-to-end anastomosis(English)

   • recipient and flap artery should be aligned on an axis approximately perpendicular to the surgeon's suturing arm. The vessels are prepared by sharply dissecting excess adventitia and nearly approximating the lumens with vascular clamps. A first stay suture is placed to bring the vessels in approximation on one side. A second stay is then placed at 180 degrees from the first, taking all tension off the repair. One end of the stay sutures is left long to allow easy vessel manipulation with forceps. Suture bites are at least twice the width of the vessel wall and should bring the vessel ends together without strangulating the intima
   • Vascular disease, Surgery
   • https://doi.org…52377-6.00016-1

2. European Environment Agency(English)

   • AQ, AQAMS, BAT, BREF, CLRTAP, EIA, EMAS, ENPI, FCCC, GAINS, IMPEL, IPPC, MAC, NEC, PM, PAH, POP, PRTR, VOC
   • Air pollution, Environment
   • http://ec.europ…nt/index_en.htm

3. endometrioid endometrial adenocarcinoma(English)

   • one of the most common tumors in the female reproductive system. With the further understanding of immune regulation mechanism in tumor microenvironment, immunotherapy is emerging in tumor treatment
   • TCGA, TIIC, TIMER
   • Oncology, Woman /female, Immunology
   • https://doi.org…onc.2020.554214

4. endoscopic endonasal approach(English)

   • CN, CN V, CSF, ICA, QS
   • Medical imaging, ENT
   • https://doi.org…016.10.JNS16381