共 12 条
[2]
BONICA JJ, 1967, PRINCIPLES PRACTICE, P1135
[3]
CRAWFORD JS, 1972, PRINCIPLES PRACTICE, P160
[5]
LOUGHRIDGE L, 1974, ANAESTHESIA, P319
[6]
MARX GF, 1968, INT ANESTHESIOLOGY C, V6, P841
[8]
PAGE EW, 1972, J OBSTET GYN BR COMM, V79, P883
[9]
PEARSON JF, 1974, J OBSTET GYN BR COMM, V81, P971