Introduction. RSA is a powerful research technique that is currently being studied at Hospital for Special Surgery (HSS) for joint replacement patients. RSA stands for r adio s tereometric a nalysis, which describes a special way of taking two x-rays from different directions at the same time, creating a âstereoâ image.SA has been used for over 30 years in Europe and for 5 years at Hospital for Special Surgery. The only potential risks come from implantation of the marker beads. 1  The insertion of beads takes an additional 5 to 10 minutes of surgery.
They're right not to â in the mid 19th century Brussels was a mainly Dutch-speaking city. There's been a major swing towards French since, fueled not just by migration, but also by families switching language. Even so, it was only really by the 1950s that Dutch had definitively lost its role as the city's vernacular.
There are 3 official languages in Belgium: Dutch, French and German. Dutch is spoken by +-60% of the people, living in the Northern Flemish region. French is spoken by +- â¦ 40% of the people, living in the Southern Walloon region. The three official languages of Belgium are: French, Flemish(Dutch) and German. English is not one of the official languages of Belgium, but many people speak it in Brus â¦ sels. 2 people found this useful. 1  Europe on a Budget: 21 Free Walking Tours in Europe Walking tours can be a great way to get to know a new city.