共 30 条
[23]
SWEET RL, 1977, J REPROD MED, V19, P21
[24]
SWEET RL, 1981, OBSTET GYNECOL, V58, P62
[26]
VASSEY M, 1976, J BIOSOC SCI, V8, P373
[27]
HOSPITALIZATIONS FOR PELVIC INFLAMMATORY DISEASE - EPIDEMIOLOGY AND TRENDS IN THE UNITED-STATES, 1975 TO 1981
[J].
JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION,
1984, 251 (19)
:2529-2533
[28]
WESTROM L, 1976, LANCET, V2, P221
[29]
WESTROM L, 1980, AM J OBSTET GYNECOL, V138, P88
[30]
ZEENICK M, 1980, FAM PLANN PERSPECT, V12, P230