共 7 条
[1]
BALLANTYNE JW, 1934, MANUAL ANTENATAL PAT, V2, P509
[2]
BALLANTYNE JW, 1902, MANUAL ANTENATAL PAT, V1, P372
[3]
BALLANTYNE JW, 1904, MANUAL ANTENATAL PAT, V2, P509
[5]
MASSMAN, 1854, MONATSCHR GEBURTSH F, V4, P81
[6]
PADGET H, 1894, S PRACTITIONER, V16, P318