O. Johnson
发表
O. Johnson,
A. M. Adebayo,
2011,
Ghana medical journal.
O. Johnson,
2012
.
E. Udofia,
U. Ekanem,
O. Johnson,
2002
.
E. Owoaje,
O. Johnson,
2012
.
A. Adebayo,
O. Johnson,
A. Kareem,
2020
.
O. Johnson,
2017,
African journal of reproductive health.
W. Ndifon,
E. Udofia,
O. Johnson,
2021,
Ibom Medical Journal.
O. Johnson,
Precious Obidike,
Miriam Eroh,
2020,
The Nigerian postgraduate medical journal.
O. Johnson,
Rose D Okon,
2012,
African journal of reproductive health.
O. Johnson,
2012,
SAHARA J : journal of Social Aspects of HIV/AIDS Research Alliance.
O. Johnson,
O. Motilewa,
C. Ihesie,
2019,
Ghana medical journal.
O. Johnson,
Emem A. Bassey,
2016
.
O. Johnson,
I. Ekong,
2016
.
A. Etokidem,
O. Johnson,
2019,
Nigerian medical journal : journal of the Nigeria Medical Association.
O. Johnson,
2019,
Nigerian medical journal : journal of the Nigeria Medical Association.
O. Johnson,
V. Ekpin,
O. Motilewa,
2019
.
O. Johnson,
C. Ihesie,
2015
.
O. Johnson,
B. Bassey,
2019,
African journal of reproductive health.
O. Johnson,
A. Ijezie,
2019,
Nigerian medical journal : journal of the Nigeria Medical Association.
O. Johnson,
E. Edward,
2016
.
A. Etokidem,
O. Johnson,
2016,
Journal of tropical medicine.
O. Johnson,
2014
.