共 40 条
[1]
Allen E. P., 1943, BRIT J RADIOL, V16, P279
[3]
BIDDLE AG, 1912, AM J OBST, V65, P987
[4]
BRIESKY, 1870, MED JB, V30, P1
[5]
BULL HCH, 1951, J OBSTET GYN BRIT EM, V58, P22
[6]
BUSCH, 1937, Z GEBURTSH, V168
[7]
BUSCH, 1838, THEORETISCHE PRACTIS
[8]
CHAMPNEYS, CITED INDIRECTLY
[9]
CUMMINGS HH, 1911, J MICHIGAN M SOC, V10, P625
[10]
DANIELS CD, 1916, AM J OBST, V74, P238