MedicineAnatomySurgeryGastroenterologyMicrovascular ReconstructionVascular SurgeryAbdominal SurgeryDigestive AnatomyGastrointestinal SurgeryMicrovascular AnastomosisVascular AnastomosisVascular AnatomyAbdominal Blood VesselsAbdominal Visceral AnatomyAnastomotic AnatomyAnastomotic CirculationEnd-to-side Vascular Anastomosis