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Questionnaire layout and wording influence prevalence and risk estimates of respiratory symptoms in a population cohort
Linda Ekerljung, Eva Rönmark, Jan Lötvall, Göran Wennergren, Kjell Torén, Bo LundbäckVolume:
aop
Year:
2012
Language:
english
Pages:
1
DOI:
10.1111/j.1752-699x.2012.00281.x
File:
PDF, 494 KB
english, 2012