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APA Citation
Cowling, B. J., Xu, C., Tang, F., Zhang, J., Shen, J., Havers, F., Wendladt, R., Leung, N. H., Greene, C., Iuliano, A. D., Shifflett, P., Song, Y., Zhang, R., Kim, L., Chen, Y., Chu, D. K., Zhu, H., Shu, Y., Yu, H., & Thompson, M. G. (2017). cohort profile: the China Ageing REespiratory infections Study (CARES), a prospective cohort study in older adults in Eastern China. BMJ open, 7(10), . http://access.bl.uk/ark:/81055/vdc_100144711856.0x00000b