Kernrechtsfrage
Whether the medical record required further clarification because of divergent assessments of work capacity.
Extrahierter Entscheid
No further clarification was required; the court could rely on the MEDAS follow-up report of 26 June 2008.
Extrahierte Begründung
Divergent medical reports do not by themselves justify additional investigations when the court has a full-proof expert opinion; the cantonal court plausibly explained why the expert report was decisive and the contrary reports did not undermine its evidentiary value.