1659-4266
1659-4266
S1659-42662015000100067
Nigeria
00
06
2015
00
06
2015
7
1
67
70
[
2002
76
2
2
95-104
]
[
2012
13
2
2
65-9
]
[
2009
2
1
1
79-82
]
[
2013
1
1
1
20-4
]
[
2006
4
1-2
1-2
9-18
]
[
2006
3
3
3
58-64
]
[
2000
15
51-4
]
[
1992
106
391-400
]
[
2012
1
4
4
131-6
]
[
2013
12
19
19
2711-4
]
[
2009
1
3
3
84-92
]
[
NPC
2006
]
[
2012
4
38-43
]
[
2006
1
1
1
6-9
]
[
2012
3
2
2
49-55
]
[
1987
2
33-7
]
[
2010
6
3
3
16-21
]
[
1980
7
216
]
[
1983
69
449-54
]
[
1997
149
61-71
]
[
1980
2nd
]
[
1986
65
669-76
]
[
1987
2
25-30
]
[
1970
4
77-9
]
[
1963
]