1. Department of General Surgery Centro Hospitalar Universitário de Lisboa Central Lisboa Portugal
2. Department of Anesthestics Instituto Português de Oncologia de Lisboa Francisco Gentil Lisboa Portugal
3. Department of Obstetrics, Gynecology and Reproductive Medicine Centro Hospitalar Universitário Lisboa Norte Lisboa Portugal
4. Vision Sciences Study Center Faculdade de Medicina Universidade de Lisboa Lisboa Portugal
5. Vitreoretinal Unit Royal Victorian Eye and Ear Hospital Melbourne Australia
6. Family Medicine Department Unidade de Saúde Familiar Gualtar Braga Portugal
7. Department of Family Medicine Unidade de Saúde Familiar do Mar Póvoa de Varzim Portugal
8. Central Library Faculdade de Medicina Universidade de Lisboa Lisboa Portugal
9. Institute for Evidence Based Healthcare Faculdade de Medicina Universidade de Lisboa Lisboa Portugal