非绞窄性小肠梗阻采用经鼻肠梗阻导管治疗的临床疗效观察
비교착성소장경조채용경비장경조도관치료적림상료효관찰
Clinical Observation on the Therapeutic Effect of Nasointestinal Obstruction Tube Treated by Non Strangulating Intestinal Obstruction