A friend s son 3.5 years old - has been diagnosed with a rare heart disease. He will need to have an open heart surgery fairly soon, most likely within the next 2 weeks. Since this type of operation cannot be performed in Serbia, where he lives, we are looking for a hospital in Europe or USA where this can be done. I would like to ask you if you know by any chance what would be the best children s hospital for this kind of surgery, or if you know anyone who has a child and had a similar procedure done. We are recommended some hospital in London, but I m looking for alternatives in the rest of Europe (Germany, France, ...) and in the USA.