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Brand, P L P; Ratjen, F; Aurora, P; Dankert-Roelse, J E; Ross-Russell, R I; Kuehni, C E; Midulla, F; Hedlin, G (2010). Paediatrics in Vienna. European respiratory journal, 35(5), pp. 1172-1178. Sheffield, UK: European Respiratory Society 10.1183/09031936.00198009
Barbato, A; Bertuola, F; Kuehni, C; Korppi, M; Kotecha, S; Pijnenburg, M W; Ratjen, F; Seddon, P; Bush, A (2009). Paediatrics in Berlin. European respiratory journal, 34(2), pp. 436-43. Sheffield, UK: European Respiratory Society 10.1183/09031936.00038809
