N F Onyemelukwe ; S N Obi ; B C Ozumba http://www.ijmhdev.com/article.asp?issn=2635-3695;year=2003;volume=8;issue=2;spage=20;epage=22;aulast=Onyemelukwe;type=0.
,
2003
N F Onyemelukwe ; M E Ohanu ; Ada Nwokocha http://www.ijmhdev.com/article.asp?issn=2635-3695;year=2002;volume=7;issue=2;spage=74;epage=76;aulast=Onyemelukwe;type=0.
,
2002
N F Onyemelukwe ; Marcus Akaolisa http://www.ijmhdev.com/article.asp?issn=2635-3695;year=2001;volume=6;issue=1;spage=57;epage=59;aulast=Onyemelukwe;type=0.
,
2001