Hutchison, B., Birch, S., Evans, C. E., Goldsmith, L. J., Markham, B. A., Frank, J., & Paterson, M. (1998). Screening for hypercholesterolaemia in primary care: Randomised controlled trial of postal questionnaire appraising risk of coronary heart disease. British Medical Journal.

Hutchison, Brian, Stephen Birch, C Edward Evans, Laurie J. Goldsmith, Barbara A. Markham, John Frank, and Michael Paterson. Screening for Hypercholesterolaemia in Primary Care: Randomised Controlled Trial of Postal Questionnaire Appraising Risk of Coronary Heart Disease. British Medical Journal, 1998.

Hutchison, Brian, et al. Screening for Hypercholesterolaemia in Primary Care: Randomised Controlled Trial of Postal Questionnaire Appraising Risk of Coronary Heart Disease. British Medical Journal, 1998.