N. Ugwu
发表
F. Okonofua,
U. Onwudiegwu,
F. Okonofua,
1990,
International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics.
F. Okonofua,
F.A. Amole,
N. Ugwu,
1989,
International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics.