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Methodology for Disease Specific Programme (DSP©) surveys designed by Adelphi Group Products is used each year to survey patients and physicians on their perceptions of treatment effectiveness, symptoms and impact of diseases. These point-in-time surveys, conducted in the USA and Europe (France, Germany, Italy, Spain and UK), provide useful information on the real-world management and treatment of diseases. This paper describes the methodology for the DSP survey in allergic rhinitis, detailing the preparation of materials, recruitment of physicians, data collection and data management. [ABSTRACT FROM AUTHOR]