Cainzos-Achirica M, Bilal U, Kapoor K, Quispe Ayala R, McEvoy JW, Pladevall-Vila M, Blumenthal RS, Blaha MJ. Methodological issues in nutritional epidemiology research–sorting through the confusion. Current Cardiovascular Risk Reports. 2018 Feb;12:4. doi: 10.1007/s12170-018-0567-8
McDonald R, Mead N, Cheraghi-Sohi S, Bower P, Whalley D. Governing the ethical consumer: identity, choice and the primary care medical encounter. Sociol Health Illn. 2007 Apr 1;29(3):430-56.