Fig. 2From: South-south collaboration on HIV/AIDS prevention and treatment research: when birds of a feather rarely flock togetherWeb of Science indexing rate of scientific publications on HIV/AIDS prevention and/or treatment involving authors from LMIC and HIC (2006–2015). The indexing rate was estimated by the number of indexed papers in each year, relative to the number of HIV/AIDS prevention and/or treatment papers indexed in the database in 2006Back to article page