DOI: 10.1055/s-00000101

Zeitschrift für Phytotherapie

References

Spee-van der Wekke J, Meulmeester JF, Radder JJ, Verloove-Vanhorick SP.
School absence and treatment in school children with respiratory symptoms in The Netherlands: data from the Child Health Monitoring System.

J Epidemiol Community Health 1998;
52: 359-363

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