SOFIA (Bulgaria), March 4 (SeeNews) - Global rating agency Moody's said on Thursday it has placed on review for possible downgrade the Baa2/Prime-3 long-term and short-term local currency and Baa3/Prime-3 long-term and short-term foreign currency deposit ratings of Piraeus Bank Bulgaria (PBB), following its decision to place on review for possible downgrade all the ratings of the Bulgarian bank's Greek parent, Piraeus Bank SA.