Leids Universitair Medisch Centrum, Leiden, Zuid-Holland, Netherlands
Oslo University Hospital- Ullevål, Oslo, Norway
Södersjukhuset, Stockholm, Sweden
Javara Research Inc. - Dallas - PPDS, Houston, Texas, United States
Universitetssykehuset Nord Norge, Tromsø, Norway
Barnmorskestationen Rosengård, Lund, Skane, Sweden