In a motor vehicle accident case, the difficulties in proving disability are further complicated by issues of causation. (bogoroch.com)
This is the tricky issue of causation, which is a primary and at times the only issue in medical malpractice cases. (bonnlaw.ca)
That suggests a separate driving force behind the ENSO phenomenon with an as yet unresolved issue of causation involving the sea surface and air interaction that leads to ENSO. (wattsupwiththat.com)