However, reliable statistical crime data is unavailable in Angola".
However, reliable comparative data, even for the world's greatest rivers, is often difficult to obtain.
The two best seem to be that recorded evidence is somehow always more powerful than reported or second-hand evidence, however reliable the reported evidence may obviously be.
However, reliable information on whether mobile growth is making up for desktop shortfall in key markets such as Britain and the US is not available.
However, reliable statistical crime data is unavailable in Angola.'' Many foreign workers are forbidden by their employers to drive cars there; those who want to spend a weekend in the countryside need to get permission well in advance.
However, reliable mathematical models depend on good epidemiological data.
However, reliable soil properties cannot always be obtained easily.
However, reliable estimates of historical carbon emissions from deforestation and degradation are de facto not available.
However, reliable quality assurance for these internal microstructures has been impossible so far.
However, reliable data directly comparing these different designs and coatings are currently lacking.
However, reliable identification of small and/or atypically localized lesions during salvage surgery procedures is challenging.
