TY  - JOUR 
AU  - Álvarez Sánchez, María Victoria
PY  - 2014
SN  - 1007-9327
UR  - http://hdl.handle.net/20.500.11940/7077
LA  - eng
TI  - Contrast-enhanced harmonic endoscopic ultrasound imaging: Basic principles, present situation and future perspectives
DO  - 10.3748/wjg.v20.i42.15549
T2  - WORLD JOURNAL OF GASTROENTEROLOGY
M2  - 15549
VL  - 20
ER  -