At least one doctor with the titles or qualifications mentioned in articles D. 6124-134-1, D. 6124-134-2 or I of article D. 6124-134-3 and working in his field of expertise takes part, either physically or by videoconference, in the multidisciplinary consultation meeting or the inter-regional multidisciplinary paediatric oncology consultation meeting during which the file of a patient likely to receive chemotherapy is presented.