共 14 条
[3]
CLAYTON DB, 2008, AAP NAT C EXH OCT
[5]
ELDER JS, 1987, LANCET, V2, P1007
[6]
EVANS MI, 1991, OBSTET GYNECOL, V77, P545
[9]
HOLMES N, 2007, PEDATRICS, V108, P1