- (A-C): Nations sorted by ratio of population per publications (A), H-Index (B) and citations (C). (C, D): Nations sorted by ratio of publications per GDP (D) as well as infant mortality rate (IMR) (E). Based on Table 1. Colors indicating continent: Asia (green), Europe (grey), North America (dark blue), South America (orange), Oceania (yellow); GDP gross domestic product, IMR infant mortality rate