O'Connor DB, Warttig S, Conner M, Lawton R. Raising awareness of hypertension risk through a web-based framing intervention: does consideration of future consequences make a difference? Psychol Health Med. 2009 Mar;14(2):213-9. doi: 10.1080/13548500802291618
Reed (Earnshaw) SJ, Reed JH. The use of statistical quality control charts in monitoring interviewers. Proceedings of the Survey Research Methods Section, American Statistical Association. 1997 Jan;893-8.
Agha M, Gnanasakthy A. A cluster analysis of the effects of storage mites as allergens in relation to certain occupations and living conditions. Clin Allergy. 1981 Sep;11(5):499-504.