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APA Citation
Xu, L., Yu, T., Gao, R., Zhang, X., Pang, Y., Yu, T., Lian, X., Scherrenberg, M., Falter, M., Kaihara, T., Kindermans, H., Coninx, K., Dendale, P., & Li, F. (n.d.). maintenance effects of a gamification intervention on motivation and physical activity in patients with coronary heart disease: intermediate results of a randomized controlled trial. European heart journal, 43, . http://access.bl.uk/ark:/81055/vdc_100168329158.0x00003b