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11. In what cases may an advertisement include a reference to the extended risk warning?

If the form of the advertisement does not permit, for technical reasons, the inclusion of the extended risk warning (and only in such cases!), the advertisement must contain a link or other reference (e.g. a QR code) to a medium which contains the extended risk warning.

A link cannot be used, therefore, on grounds that the extended risk warning would detract from the attractiveness of the advertisement.