R. Porter
发表
D. Taylor-Robinson,
P. Munday,
J. Carder,
1984,
British journal of obstetrics and gynaecology.
G. Stirrat,
R. Porter,
G. M. Stirrat,
1986,
British journal of obstetrics and gynaecology.
Lucy K Smith,
P. Brocklehurst,
J. Trinder,
2006,
BMJ : British Medical Journal.
R. Porter,
2006,
BJOG : an international journal of obstetrics and gynaecology.