共 15 条
[5]
HAMBURG MA, 1992, NEW YORK STATE J MED, V92, P291
[6]
HARRIS W, 1989, INFECT DIS, P405
[7]
NOVICK LF, 1992, NEW YORK STATE J MED, V92, P293
[8]
PRIDIE RB, 1961, BRIT MED J, V3, P78
[9]
SCHAEFER G, 1975, OBSTET GYNECOL, V46, P706