Validation of a computerized 24h-recall in European Adolescents from the HELENA study

@inproceedings{Hallstrm2009ValidationOA,
  title={Validation of a computerized 24h-recall in European Adolescents from the HELENA study},
  author={Lena Karlsson Hallstr{\"o}m and Mar{\'i}a Isabel Mesana and Anna Kacs{\'a}ndi and Carine Anna Vereecken},
  year={2009}
}
Introduction: The HELENA study (Healthy Lifestyle in Europe by Nutrition in Adolescents) has been performed in ten cities around Europe. The study has been using a computerized 24h-recall program c ... 

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