Authors: Pius G Horumpende; Sophia H Said; Festo S Mazuguni; Magreth L Antony; Happiness H Kumburu; Tolbert B Sonda; Charles E Mwanziva; Stephen E Mshana; Blandina T Mmbaga; Debora C Kajeguka; Jaffu O Chilongola Journal: PLoS One Date: 2018-10-31 Impact factor: 3.240