Z. Xia
发表
J. Trussell,
H. Peterson,
L. Tylor,
1996
.
J. Trussell,
H. Peterson,
L. Tylor,
1997
.
P. Wingo,
S. Ventura,
J. Marks,
1997
.
M. Sierra,
A. Duerr,
M. Macasaet,
1997,
Obstetrics and gynecology.
H. Peterson,
L. Koonin,
H B Peterson,
1994,
Obstetrics and gynecology.
P. Wingo,
H. Peterson,
P. Velebil,
1995,
Obstetrics and gynecology.
H. Lawson,
H. Atrash,
H W Lawson,
1993,
MMWR. CDC surveillance summaries : Morbidity and mortality weekly report. CDC surveillance summaries.
J. Trussell,
H. Peterson,
L. Tylor,
1999
.
J. Trussell,
H. Peterson,
L. Tylor,
1996,
American journal of obstetrics and gynecology.
J. Trussell,
H. Peterson,
L. Tylor,
1996
.
J. Trussell,
H. Peterson,
L. Tylor,
1999,
Obstetrics and gynecology.
J. Trussell,
H. Peterson,
L. Tylor,
1997,
The New England journal of medicine.
J. Trussell,
H. Peterson,
L. Tylor,
2001,
Obstetrics and gynecology.