共 18 条
[1]
ALBERMAN E, 1974, CLIN OBSTET GYNAECOL, V1, P1
[2]
BRANDT EN, 1984, 98131 GOV PRINT OFF, P94
[3]
BRUMFITT W, 1975, KIDNEY INT, V8, pS113
[5]
FACTORS ASSOCIATED WITH SPONTANEOUS PRE-TERM BIRTH
[J].
BRITISH JOURNAL OF OBSTETRICS AND GYNAECOLOGY,
1976, 83 (05)
:342-350
[6]
GARN SM, 1977, EPIDEMIOLOGY PREMATU, P127
[7]
HUDDLESTON J F, 1982, Clinical Obstetrics and Gynecology, V25, P123
[8]
KALTREIDER F, 1980, CLIN OBSTET GYNECOL, V23, P17
[9]
THE CHANGING PATTERN OF LOW-BIRTH-WEIGHT IN THE UNITED-STATES - 1970 TO 1980
[J].
JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION,
1984, 251 (15)
:1978-1982
[10]
LIEBERMAN E, 1986, THESIS HARVARD U SCH