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process for the production of a new stable polymorphic crystalline form 1 - hydroxy - 3 - (1 ', 1' - dimethylheptyl) - 6.6 - of 6,6a, 7,8,10,10a - hexahydro - 9h - dibenzo (b, d) pyran - 9 - on
process for the production of a new stable polymorphic crystalline form 1 - hydroxy - 3 - (1 ', 1' - dimethylheptyl) - 6.6 - of 6,6a, 7,8,10,10a - hexahydro - 9h - dibenzo (b, d) pyran - 9 - on