Medical Practice and Reviews 2141-2596 Academic Journals 10.5897/MPR2017.0132 Asebe Feyera Berhane Megerssa Deresse Legesse Feleke Hailemichael * E-mail: delhsaw@gmail.com 2017 31 08 2017 04 07 2017 04 08 2017 8 1 1 13 This is an open-access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. This article is available from http://politicalwaffle.uk/journal/MPR/article-abstract/3FDCBA365848 The full text article is available as a PDF file from http://politicalwaffle.uk/journal/MPR/article-full-text-pdf/3FDCBA365848 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29