共 11 条
[1]
ERICKSON JD, 1982, JAMA-J AM MED ASSOC, V247, P987
[3]
GUYER B, 1982, NEW ENGL J MED, V306, P1230
[6]
PHILIP AGS, 1981, PEDIATRICS, V68, P122
[7]
SHAPIRO S, 1968, INFANT PERINATAL MAT, P16
[8]
STUBBLEFIELD PG, 1980, OBSTET GYNECOL, V56, P676
[10]
1982, MMWR, V30, P8