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APA Citation
Evers, A. C. C., Brouwers, H. A. A., Hukkelhoven, C. W. P. M., Nikkels, P. G. J., Boon, J., Egmond-Linden, A. v., Hillegersberg, J., Snuif, Y. S., Sterken-Hooisma, S., Bruinse, H. W., & Kwee, A. (2010). authors' reply. BMJ, 341, . http://access.bl.uk/ark:/81055/vdc_100144716881.0x00002e