Fig. 4From: Medical care of patients with Wilson disease in Germany: a multidisciplinary survey among university centersFrequency of monitoring investigations used for WD patients in German university centers. Up to fifty-four departments (depending on the procedure) provided data on their application of certain monitoring investigations. Most investigations are used at least annually or more often. The application of monitoring investigations subdivided into disciplines is shown in Additional file 1: Material 8Back to article page