1659-4266
1659-4266
S1659-42662020000100075
10.22458/urj.v12i1.2605
Nigeria
Nigeria
00
06
2020
00
06
2020
12
1
75
83
[
2003
20
1-7
]
[
2012
5
56-61
]
[
2004
]
[
2007
14
31-8
]
[
2009
33
(1)
(1)
187-93
]
[
2015
10
100-3
]
[
2004
3
(29)
(29)
]
[
2016
17
1-5
]
[
2015
13
(1)
(1)
79-88
]
[
1972
]
[
2008
8
289-92
]
[
1998
15
136-43
]
[
2013
24
184-90
]
[
2008
2
866-71
]
[
2001
22
35-42
]
[
2018
7
(5)
(5)
]
[
2018
10
(2)
(2)
379-85
]
[
2009
1
13-7
]
[
2007
11
99-107
]
[
1999
]
[
2016
73
234-9
]
[
1993
]
[
WHO
2002
]
[
WHO
2014
]
[
WHO
2015
]