Artikkelit - Selaus tekijän mukaan "Björkstén B"
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Translation of questions: the International Study of Asthma and Allergies in Childhood (ISAAC) experience
Ellwood P; Williams H; Aït-Khaled N; Björkstén B; Robertson C; SAAC Phase III Study Group
International Journal of Tuberculosis and Lung Disease : 9 (2009)