Described is a method for the production of metal oxides by flame spray pyrolysis, in particular mixed metal oxides such as ceriazirconia, and metal oxides obtainable by said method. For example, advertising and promotional information targeted to the user is provided during an information assistance call, which may be presented to the user in hisher preferred language. A particular use of this product would be on an exchange for sporting events, where for a given event, an identical interface to that which would currently be available for odds markets is made available, but which would be settled differently from the former, in such a manner as to allow investors to take positions on the movement of the odds without exposure to the final outcome of the event. Information is computed for each group. The change in the light transmitting power of the samples according to the concentration of FXIIIa present is registered and is used as a measure of the activity of FXIIIa. An omission manager is operable to find a near matching candidate term if the clinical term is not found in the thesaurus.