Doward LC, Meads DM, Fisk JD, McKenna SP, Eckert BJ. Derivation of a unidimensional scale from the fatigue impact scale. Mult Scler. 2006 Sep;12(Suppl 1):S1-S228.
Whalley D, Bojke C, Gravelle H, Sibbald GP. GP job satisfaction in view of contract reform: a national survey. Br J Gen Pract. 2006 Feb 1;56(523):87-92.
Ryan M, Watson V. Editorial - Counting the cost of fast access: using discrete choice experiments to elicit preferences in general practice. Br J Gen Pract. 2006 Jan;56(522):4-5.