By Molenberghs Geert   Thijs Herbert   Jansen Ivy   Beunckens Caroline   in Biostatistics

ISSN:1465-4644|5|3|445-464

Oxford University Press‎(2004)‎

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By Verhulst Stijn   Vael Carl   Beunckens Caroline   Nelen Vera   Goossens Herman   Desager Kristine   in Journal of Asthma

ISSN:0277-0903|45|9|828-832

Informa Healthcare‎(2008)‎

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