共 12 条
[2]
BRETT KM, 1994, AM J OBSTET GYNECOL, V170, P41
[4]
*COMM MAT CHILD CA, 1957, GUID MAT DEATH STUD
[6]
FIELDS J, 1992, J TRAUMA, V32, P643
[7]
GOODMAN RA, 1996, MMWR-MORBID MORTAL W, V45, P161
[8]
GOODMAN RA, 1995, MMWR-MORBID MORTAL W, V44, P6
[10]
MAY WJ, 1989, AM J OBSTET GYNECOL, V161, P555