Mike Calnan

Trust in the health-care provider-patient relationship: a systematic mapping review of the evidence base.

Vikki Entwistle, Paul Dieppe, Rebecca Barnes, 2013, International journal for quality in health care : journal of the International Society for Quality in Health Care.

Effects of a Financial Incentive on Health Researchers’ Response to an Online Survey: a Randomized Controlled Trial

Mark Petticrew, Irwin Nazareth, M. Petticrew, 2010, Journal of medical Internet research.