For more details, see https://www.umwelt-online.de/regelwerk/arbeitss/arbsch/arbmedvv_ges.htm. Advice on this can be obtained from the company doctors. The responsible company doctors are Dr. Nicole Graupe and Dr. Elisabeth Knopka, (Occupational Health Center of the Charité, phone 450 570 775, e-mail betriebsarzt-fu@cha-rite.de.