共 12 条
[1]
BERBOS JN, 1964, JAMA-J AM MED ASSOC, V188, P813
[2]
BIENIARZ J, 1972, OBSTET GYNECOL, V40, P65
[4]
BIENIARZ J, 1972, PREMATURE LABOR ITS, V9, P93
[5]
FRIEDMAN GA, 1958, OBSTET GYNECOL SURVE, V13, P611
[6]
FRIEDMAN GA, 1958, B SLOANE HOSP, V4, P39
[7]
GUTMACHER AF, 1958, OBSTET GYNECOL, V12, P528