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The target sign: an endoscopic marker for the resection of the muscularis propria and potential perforation during colonic endoscopic mucosal resection

Muscularis PropriaColorectal SurgeryMedicineGastroenterologyPathologyPotential PerforationVisceral SurgeryGi TechniqueSurgeryUpper Gastrointestinal SurgeryEndoscopic ImagingTarget Sign