ZURICH, Jan 11 (Reuters) - UBS (UBSG.S), which recently took over Credit Suisse, might now be considered excessively large for Switzerland, former Swiss Finance Minister Ueli Maurer stated on Saturday. He called for measures to mitigate the risks associated with the expanded bank. "If you simply analyze the figures and compare UBS to the Swiss economy, it is too large," Maurer remarked to the Tages-Anzeiger newspaper. "This is why steps need to be taken to reduce the risk."