1. Cost-effectiveness of telephone or surgery asthma reviews: economic analysis of a randomised controlled trial by Hilary Pinnock, Lynda McKenzie, David Price, and Aziz Sheikh BJGP Volume 55(511):119-124 February 1, 2005 ©2005 by British Journal of General Practice

2. Sensitivity analysis I: Cost saving per consultation achieved by telephone compared to proportion reviewed in the surgery. Hilary Pinnock et al. Br J Gen Pract 2005;55:119-124 ©2005 by British Journal of General Practice

3. Sensitivity analysis II: Cost saving per consultation achieved by duration of telephone consultation compared to duration of surgery review. Hilary Pinnock et al. Br J Gen Pract 2005;55:119-124 ©2005 by British Journal of General Practice