## References 

## References 

Entries should be formatted with the Vancouver style, i.e. numbered consecutively in order of appearance in the text and listed in this section in numerical order. Each reference is only listed once. Numbers should be in square brackets in the text. See https://en.wikipedia.org/wiki/Vancouver_system 

When referring to ECDC’s surveillance objectives and disease-specific surveillance objectives, it is important to include appropriate references. Similarly, it would be informative to include references to more information on the laboratory network in question. 

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## Annex 1. Title 

## Annex 

Questionnaires used, terms of references, list of participating laboratories/countries, extra tables of data, etc. 

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