A systematic review of Health Technology Assessment tools in sub-Saharan Africa: methodological issues and implications. - Kriza, Christine; Wahlster, Philip; Marin, Mayra; Kolominsky-Rabas, Peter L.; Hanass-Hancock, Jill; Deghaye, Nicola; Odame, Emmanuel Ankrah; Aman, Rashid; Gebe, Nicodemus; Akhwale, Willis; Wachsmuth, Isabelle (Health Research Policy & Systems, 2014)