Institution: | 1.G?G/?BIG (Gesundheit ?sterreich GmbH/(?sterreichisches Bundesinstitut für Gesundheitswesen),Health Austria Ltd/Division of the Austrian Federal Institute for Health,Vienna,Austria;2.KBV (Kassen?rztliche Bundesvereinigung),National Association of Statutory Health Insurance Physicians,Berlin,Germany;3.National Association of Statutory Health Insurance Physicians,Berlin,Germany |