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APA Citation
Cravero, J. P., Fanciullo, G. J., McHugo, G. J., Baird, J. C., & Lonnqvist, P. (2013). the validity of the Computer Face Scale for measuring pediatric pain and mood. Paediatric anaesthesia, 23(2), 156–161. http://access.bl.uk/ark:/81055/vdc_100024476576.0x000056