(Q53460790)
Statements
Distinction between upper and lower gastrointestinal perforation: usefulness of the periportal free air sign on computed tomography. (English)
Hyun Sun Cho
Seong Eon Yoon
Seong Hoon Park
Hyewon Kim
Young-Hwan Lee
Kwon-Ha Yoon
29 October 2007
69
1
108-113