Ngalah, Bidii S.
Ingasia, Luiser A.
Cheruiyot, Agnes C.
Chebon, Lorna J.
Juma, Dennis W.
Muiruri, Peninah
Onyango, Irene
Ogony, Jack
Yeda, Redemptah A.
Cheruiyot, Jelagat
Mbuba, Emmanuel
Mwangoka, Grace
Achieng, Angela O.
Ng'ang'a, Zipporah
Andagalu, Ben
Akala, Hoseah M.
Kamau, Edwin
Article History
Received: 12 October 2014
Accepted: 6 January 2015
First Online: 6 February 2015
Competing interests
: The authors declare no competing financial interests.