How to improve research capacity strengthening efforts: learning from the monitoring and evaluation of four research consortia in Africa oleh Victoria O. Kasprowicz, Caroline Jeffery, Dorcas Mbuvi, Victoria Bukirwa, Karim Ouattara, Florence Kirimi, Kathrin Heitz-Tokpa, Mary Gorrethy, Denis Chopera, Damalie Nakanjako, Bassirou Bonfoh, Alison Elliott, Samson Kinyanjui, Imelda Bates, Thumbi Ndung’u