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1.4.4.1 created 1972, modified 1982 (EC 1.4.1.6 created 1961, incorporated 1982), deleted 2003
1.6.2.1 created 1961, deleted 1965
1.6.2.3 created 1972, deleted 1965
1.6.8.1 created 1981, deleted 2002
1.6.8.2 created 1982, deleted 2002