1. Royal Pharmaceutical Society of Great Britain. From Compliance to Concordance: Achieving Shared Goals in Medicine Taking. London: RPSGB, 1997 (www.concordance.org).
2. Charles C, Gafni A, Whelan T. Shared decision-making: what does it mean? (or it takes at least two to tango). Soc Sci Med1997; 44: 681–692.
3. Roter DL, Hall JA. Doctors Talking with Patients, Patients Talking with Doctors: Improving Communication in Medical Visits. London: Auburn House, 1992.
4. Bower P, Gask L, May C, Mead N. Domains of consultation research in primary care. Patient Educ Counsel2001; 45: 3–11.
5. Byrne PS, Long BL. Doctors Talking to Patients. London: HMSO, 1976.