The diagnotic significance of the capsule endoscopy for intractable gastrointestinal hemorrhage in the elderly
YAN Hongjian,LU Sucai,TIAN Zili,WANG Yangyang
Medical Reserch and Education . 2013, (3): 16 -19 .  DOI: 10.3969/j.issn.1674-490X.2013.03.004