共 20 条
[1]
ALLAN LD, 1985, BRIT HEART J, V54, P523
[3]
CHAPMAN JV, 1987, BASIC CONCEPTS DOPPL
[8]
HANSMANN M, 1982, FETAL ULTRASONOGRAPH, P151
[9]
Hatle L, 1985, DOPPLER ULTRASOUND C, V2nd
[10]
PULSED DOPPLER FETAL ECHOCARDIOGRAPHY
[J].
JOURNAL OF CLINICAL ULTRASOUND,
1985, 13 (04)
:247-254