Standardisation of spirometry - Miller, M R; Hankinson, J; Brusasco, V; Burgos, F; Casaburi, R; Coates, A; Crapo, R; Enright, P; van der Grinten, CP M; Gustafsson, P; Jensen, R; Johnson, D C; MacIntyre, N; McKay, R; Navajas, D; Pedersen, O F; Pellegrino, R; Viegi, G; Wanger, J (Eur Respir J, 2005)