共 7 条
[2]
CHIN KY, 1949, ARCH PATHOL, V48, P221
[4]
GARRETT W J, 1975, Journal of Clinical Ultrasound, V3, P45, DOI 10.1002/jcu.1870030109
[5]
KOHLER HG, 1973, J OBSTET GYN BR COMM, V80, P130