Fig. 2From: Spatial inequality, characteristics of internal migration, and pulmonary tuberculosis in China, 2011–2017: a spatial analysisThe annual average notification rate of SS + PTB and the proportions of emigrants/immigrants at the province level in mainland China, 2011–2017. a Illustrates the notification rate of SS + PTB. b and c illustrate the proportions of emigrants and immigrants, respectively. TB tuberculosis; SS + PTB sputum smear-positive pulmonary TBBack to article page