Article R1413-35 of the French Public Health Code
The person to whom the request is addressed will forward the information requested without delay to the person designated under the conditions set out in the previous article, by means which guarantee its confidentiality. When the above-mentioned information is sent to the Agence nationale de santé publique in a sealed envelope, it is sent in a double envelope, the inner envelope being marked “secret médical” or “secret industriel”. When this…