Peters, M., Jenkinson, C., Perera, S., Loder, E., Jensen, R., Katsarava, Z., . . . Steiner, T. (2012). Quality in the provision of headache care. 2: Defining quality and its indicators. Springer Milan.

Peters, Michele, Crispin Jenkinson, Suraj Perera, Elizabeth Loder, Rigmor Jensen, Zaza Katsarava, Raquel Gil Gouveia, Susan Broner, and Timothy Steiner. Quality in the Provision of Headache Care. 2: Defining Quality and Its Indicators. Springer Milan, 2012.

Peters, Michele, et al. Quality in the Provision of Headache Care. 2: Defining Quality and Its Indicators. Springer Milan, 2012.