McKenna SP, Whalley D, Dewar AL, Erdman RA, Kohlmann T, Niero M, Baro E, Cook SA, Crickx B. International development of the Parents' Index of Quality of Life in Atopic Dermatitis (PIQoL-AD). Qual Life Res. 2005 Feb 1;14(1):231-41.
Herman WH, Hoerger TJ, Brandle M, Hicks K, Sorensen S, Zhang P, Hamman RF, Ackermann RT, Engelgau MM, Ratner RE. The cost-effectiveness of lifestyle modification or metformin in preventing type 2 diabetes in adults with impaired glucose tolerance. Ann Intern Med. 2005 Jan 1;142(5):323-32.