`` `` this paper examines the progress of infant mortality in the primary developed countries after 1960. a strong decrease of the phenomenon was measured everywhere although its intensity was independent of the starting levels . the most rapid decline occurred in japan and several countries in southern and northwestern europe . the slowest decline occurred in the soviet union . in some countries , such as romania , czechoslovakia and the united states , short term fluctuations interposed themselves on the declining trend . the differences in mortality between the two sexes were generally reduced in those populations with low infant mortality , while the opposite happened in the case of most of the others . '' ''
C0015176
europ
C0035826
romani