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APA Citation
Gabler, N., Duan, N., Raneses, E., Suttner, L., Ciarametaro, M., Cooney, E., Dubois, R., Halpern, S., & Kravitz, R. (2016). no improvement in the reporting of clinical trial subgroup effects in high-impact general medical journals. Trials, 17(1), 1–12. http://access.bl.uk/ark:/81055/vdc_100080486973.0x000039