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Comparison of multiple birth rate in Korea to multiple (twin) pregnancy rate in other countries
*Multiple birth rate (MBR): multiple births/1,000 live births; †Twin pregnancy rate: twin pregnancies/1,000 pregnancies; ‡Multiple pregnancy rate: multiple pregnancies/1,000 pregnancies; §The MBR was maintained within slightly less than 10.0 for a decade from 1981 to 1990 in Korea.
