| 8.-21.10.06 | University of Stanford, Department of Oto-Rhino-Laryngology, Sleep Center, Palo Alto, California, USA. BA-CA Stipendium for Outgoing Scientists |
| 1.9.-5.11.1999 | Groote Schoor Hospital, University of Cape Town, Cape Town, South Africa, Prof. J. Fagan. Postgraduate study visit |
| 2.-13.2.1998 | Groote Schoor Hospital, University of Cape Town, Cape Town, South Africa, Prof. J. Sellars. Postgraduate study visit |
| 1.1.-31.12.1992 | King Edward VIII Hospital, Durban, South Africa. Turnusarztausbildung (Internal Medicine, General Surgery, Obstetrics and Gynaecology) |
| 2.7.-3.8.1990 | Prince of Wales Children´s Hospital, University of New South Wales, Sydney, Australia Famulatur |
| 1.-31.10.1988 | King Edward VIII Hospital, Durban, South Africa. Famulatur |