共 27 条
[1]
ANDERSON NB, PERSONAL COMMUNICATI
[2]
APGAR V, 1953, ANESTH ANALG CLEVE, V32, P260, DOI DOI 10.1213/00000539-195301000-00041
[4]
BONICA JJ, 1967, PRINCIPLES PRACTICE, V1
[5]
BURCHELL RC, 1966, OBSTET GYNECOL, V27, P714
[6]
FINSTER M, 1965, AM J OBSTET GYNECOL, V92, P927
[8]
KOBAK AJ, 1962, OBSTET GYNECOL, V19, P302