共 112 条
[2]
Ancelle T., 1996, Bulletin Epidemiologique Hebdomadaire, P227
[3]
[Anonymous], WKLY EPIDEMIOL REC
[4]
Armstrong C., 1934, PUB HEALTH REP, V49, P1019, DOI DOI 10.2307/4581290
[6]
BARTLETT JG, 1997, J HOPKINS HOSP GUIDE
[7]
Barton LL, 2002, AM J OBSTET GYNECOL, V187, P1715, DOI 10.1067/mob.2002.126297