Frequent persistence of dysplasia by systematic pathological evaluation after photodynamic therapy for Barrett's Esophagus with high-grade dysplasia or early adenocarcinoma
机构:
Gloucestershire Royal Hosp, Cranfield Postgrad Med Sch, Great Western Rd, Gloucester GL1 3NN, EnglandGloucestershire Royal Hosp, Cranfield Postgrad Med Sch, Great Western Rd, Gloucester GL1 3NN, England