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APA Citation
Cramon, P., Rasmussen, Å. K., Bonnema, S. J., Bjorner, J. B., Feldt-Rasmussen, U., Groenvold, M., Hegedüs, L., & Watt, T. (2014). development and implementation of PROgmatic: A clinical trial management system for pragmatic multi-centre trials, optimised for electronic data capture and patient-reported outcomes. Clinical trials, 11, 344–354. http://access.bl.uk/ark:/81055/vdc_100056564060.0x000009