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1910-1953 no specific months
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-
-
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No specific month
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-
-
-
-
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no specific month
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1928-1934, no specific months.
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1928-1930
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-
-
-
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6 in Hiroshima ans 9 in Nagasaki
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1948-1949
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No specific month
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1956-1990
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1970s - 1980s no speific months
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