C. Patterson
发表
W. Murray,
D. O’Reilly,
L. Murray,
2000,
Obstetrics and gynecology.
J. L. Budd,
T. Peters,
J. Pell,
2000,
Journal of epidemiology and community health.
M. Gill,
S. Ennis,
N. Miller,
2006,
Ulster medical journal.