Kernrechtsfrage
Whether the physician acting for the insured person was duly authorised to file the federal appeal.
Extrahierter Entscheid
The existing process powers of attorney, read in context, sufficiently covered the federal proceedings; no excessive formalism was warranted.
Extrahierte Begründung
A power of attorney generally extends through the same litigation track unless expressly limited. Here, the wording did not show an intentional restriction to earlier instances, and the appeal was a lay submission, so failing to refer again to the file power of attorney was not decisive.