Cals, J. W. L., Schot, M. J. C., de Jong, S. A. M., Dinant, G., & Hopstaken, R. M. (2010). Point-of-Care C-Reactive Protein Testing and Antibiotic Prescribing for Respiratory Tract Infections: A Randomized Controlled Trial. American Academy of Family Physicians.

Cals, Jochen W. L., Marjolein J. C. Schot, Sanne A. M. de Jong, Geert-Jan Dinant, e Rogier M. Hopstaken. Point-of-Care C-Reactive Protein Testing and Antibiotic Prescribing for Respiratory Tract Infections: A Randomized Controlled Trial. American Academy of Family Physicians, 2010.

Cals, Jochen W. L., et al. Point-of-Care C-Reactive Protein Testing and Antibiotic Prescribing for Respiratory Tract Infections: A Randomized Controlled Trial. American Academy of Family Physicians, 2010.