U. Jackson
发表
M. Harris,
K. Rawlinson,
A. Zubrow,
1984,
Obstetrics and gynecology.
K. Friedman,
H. Fox,
J. Owen,
1992
.
U. Jackson,
L. Clay,
K. Criss,
1993,
Journal of nurse-midwifery.
A. Monteagudo,
K. Berkowitz,
L. Baxi,
1990,
American journal of obstetrics and gynecology.
S. Buyske,
D. Ogunyemi,
U. Jackson,
1998,
Acta obstetricia et gynecologica Scandinavica.