1. Faculty of Medicine, Catholic University of Bukavu, Bukavu, Democratic Republic of Congo
2. Department of Surgery, University of Lubumbashi, Lubumbashi, Democratic Republic of Congo
3. Hôpital Provincial Général de Référence de Bukavu, Bukavu, Democratic Republic of Congo
4. Department of Hand Surgery, Plastic Surgery and Burns, and Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden