P2.01: Results of a study on'respiratory symptoms and allergies in children at school entry age in a rural region (AABEL)': internal and external comparison of prevalence rates

Autor: Sandra Heidrich, Michael Hoopmann, Friederike Neisel
Rok vydání: 2004
Předmět:
Zdroj: Biometrical Journal. 46:122-122
ISSN: 1521-4036
0323-3847
DOI: 10.1002/bimj.200490181
Databáze: OpenAIRE