00398nam a22001577a 4500020001800000082001800018100002000036245005100056250001200107260004200119300001200161650001400173654001400187700002000201700001900221  a9781455751174  a616.0757bGOR  aGore, Richard M  aTextbook of gastrointestinal radiology ; Vol.1  a4th ed.  aPhiladelphiabElsevier Saundersc2015  a1151 p.  aRadiology  aRadiology  aGore, Richard M  aLevine, Marc S