共 4 条
[1]
BALLARD RA, 1978, CLIN RES, V26, P179
[2]
GOODLIN RC, 1980, LANCET, V1, P1017
[3]
RESULTS OF THE 1ST 124 DELIVERIES IN THE BIRTH ROOM AT ROOSEVELT-HOSPITAL IN NEW-YORK-CITY
[J].
BIRTH AND THE FAMILY JOURNAL,
1979, 6 (02)
:97-102
[4]
SUMNER PE, 1976, BIRTH FAM J, V3, P79