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A customer uses the automated teller machine (ATM) at a Siam Commercial Bank Pcl branch in the MBK shopping mall, in Bangkok, Thailand, on Wednesday, Jan. 19, 2011. Siam Commercial Bank is Thailand's fourth-largest bank by assets. Photographer: Dario Pignatelli/Bloomberg via Getty Images

A customer uses the automated teller machine (ATM) at a Siam Commercial Bank Pcl branch in the MBK shopping mall, in Bangkok, Thailand, on Wednesday, Jan. 19, 2011. Siam Commercial Bank is Thailand's fourth-largest bank by assets. Photographer: Dario Pignatelli/Bloomberg via Getty Images