S. Twum
发表
D. K. Boah,
S. Twum,
K. Pelig-Ba,
2016
.
E. Aspinwall,
S. Twum,
2013
.
S. Twum,
2012
.
D. K. Boah,
S. Twum,
2017
.
D. K. Boah,
Douglas Yenwon Kparib,
S. Twum,
2018
.
E. Aspinwall,
S. Twum,
2016
.
S. Twum,
M. Fosu,
Osborne Jackson,
2016
.
D. K. Boah,
S. Twum,
2019
.
Stephen B. Twum,
S. Twum,
2013
.
S. Twum,
J. Martey,
E. Browne,
1994,
East African medical journal.
S. Twum,
J. Martey,
E. Browne,
1993,
International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics.
D. K. Boah,
S. Twum,
K. Pelig-Ba,
2015
.
S. Twum,
J. Osborne,
M. Ofori,
2020
.
Stephen Boakye Twum,
S. Twum,
2009
.
Stephen B. Twum,
Elaine Aspinwall,
E. Aspinwall,
2014
.
S. Twum,
J. Martey,
E. Browne,
1995,
West African Journal of Medicine.
S. Twum,
S. Kyei-Faried,
E. Browne,
1997,
International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics.
S. Twum,
M. M. Iddrisu,
K. Nantomah,
2016
.
Stephen B. Twum,
Christian John Etwire,
S. Twum,
2014
.
Stephen Boakye Twum,
D. K. Boah,
Douglas Kwasi Boah,
2019,
American Journal of Operations Research.
S. Twum,
J. Martey,
E. Browne,
1998,
West African journal of medicine.
S. Azizu,
S. B. Twum,
S. Twum,
2015
.
Stephen B. Twum,
Christian John Etwire,
S. Twum,
2015
.
S. Twum,
K. Nantomah,
E. Prempeh,
2015,
1510.03459.
Stephen Boakye Twum,
D. K. Boah,
Douglas Kwasi Boah,
2020
.