共 59 条
[1]
American College of Obstetricians and Gynecologists, 2009, Obstet Gynecol, V113, P451, DOI 10.1097/AOG.0b013e31819930b0
[2]
American Institute of Ultrasound in Medicine, 2012, AIUM PRACT GUID PERF
[3]
Bega G, 2001, J ULTRAS MED, V20, P391