1.Objective To explore the effect and survival time by setting covered metallic expansible-self stents to treat postradiation esophago-tracheal fistula.
目的:探索放置金属带膜自膨式支架治疗放疗后食管气管瘘的功效及。
2.But Michael Jaff, medical director of the Massachusetts General Hospital Vascular Center in Boston, says “coronary stents have revolutionized patient care.