G. Morris
发表
P. Sánchez,
D. McIntire,
J. Sheffield,
2002,
American journal of obstetrics and gynecology.
A. Mickal,
F. Cunningham,
Cunningham Fg,
1973,
Obstetrics and gynecology.
L. Porter,
G. Morris,
K. Meyer,
1919
.
G. Morris,
K. Meyer,
R. L. Porter,
1919
.